anchor light on sailboat

Service Locator

Angler Endorsement
Boat Towing Coverage
Mechanical Breakdown
Insurance Requirements in Mexico
Agreed Hull Value
Actual Cash Value
Liability Only
Insurance Payment Options
Claims Information
Towing Service Agreement
Membership Plans
Boat Show Tickets
BoatUS Boats For Sale
Membership Payment Options
Consumer Affairs
Boat Documentation Requirements
Installation Instructions
Shipping & Handling Information
Contact Boat Lettering
End User Agreement
Frequently Asked Questions
Vessel Documentation
BoatUS Foundation
Government Affairs
Powercruisers
Buying & Selling Advice
Maintenance
Tow Vehicles
Make & Create
Makeovers & Refitting
Accessories
Electronics
Skills, Tips, Tools
Spring Preparation
Winterization
Boaters’ Rights
Environment & Clean Water
Boat Safety
Navigational Hazards
Personal Safety
Batteries & Onboard Power
Motors, Engines, Propulsion
Books & Movies
Cockpit Confessions
Communication & Etiquette
Contests & Sweepstakes
Colleges & Tech Schools
Food, Drink, Entertainment
New To Boating
Travel & Destinations
Watersports
Anchors & Anchoring
Boat Handling

Anchor Light Requirements

USCG anchor light requirements for inland waterways.

The Inland Rules have specific requirements as to anchor lights. That rule is quoted below, as is the USCG site reference.

A 360-degree white all-around masthead light with two-mile visibility normally fulfills this requirement for most pleasure boats, but familiarize yourself with and follow the rule. Wire gauge, length of wiring, connections and battery condition can affect a light's performance. Follow manufacturer's instructions to ensure compliance with U.S. Coast Guard regulations. If you have one of the newer LED anchor lights, it may not be as bright as earlier lights. Be sure that the manufacturer specifies in writing that it meets USCG requirement.

Displaying a proper anchor light when anchored at night isn't merely a matter of law. It's a matter of safety for you and others. Even if the boat is in a known or designated anchorage area, dinghies and other boats may be traveling in that area and will need to know the location of your boat. People have been severely injured and killed because a skipper decided that he'd not burn an anchor light.

Following is Rule 30 of the Rules found here .

Rule 30 - Anchored Vessels and Vessels Aground

(a) A vessel at anchor shall exhibit where it can best be seen:

(i) in the fore part, an all-round white light or one ball;

(ii) at or near the stern and at a lower level than the light prescribed in subparagraph (i), an all-round white light.

(b) A vessel of less than 50 meters in length may exhibit an all-round white light where it can best be seen instead of the lights prescribed in paragraph (a) of this Rule.

(c) A vessel at anchor may , and a vessel of 100 meters and more in length shall, also use the available working or equivalent lights to illuminate her decks.

(d) A vessel aground shall exhibit the lights prescribed in paragraph (a) or (b) of this Rule and in addition, if practicable, [Inld] where they can best be seen;

(i) two all-round red lights in a vertical line;

(ii) three balls in a vertical line.

(e) A vessel of less than 7 meters in length, when at anchor not in or near a narrow channel, fairway or where other vessels normally navigate, shall not be required to exhibit the shape prescribed in paragraphs (a) and (b) of this Rule.

(f) A vessel of less than 12 meters in length, when aground, shall not be required to exhibit the lights or shapes prescribed in subparagraphs (d)(i) and (ii) of this Rule.

(g) A vessel of less than 20 meters in length, when at anchor in a special anchorage area designated by the Secretary, shall not be required to exhibit the anchor lights and shapes required by this Rule. [Inld]

The truth about ceramic coatings for boats.

Our editor investigates the marketing claims of consumer-grade ceramic coatings.

Fine-Tune Your Side Scan Fishfinder

Take your side-scanning fishfinder off auto mode, and you’ll be spotting your prey from afar in no time

DIY Boat Foam Decking

Closed-cell foam flooring helps make boating more comfortable. Here’s how to install it on your vessel

Click to explore related articles

BoatUS Editors

Contributor, BoatUS Magazine

Award-winning BoatUS Magazine is the official publication of Boat Owners Association of The United States. The magazine provides boating skills, DIY maintenance, safety, news and more from top experts.

BoatUS Magazine Is A Benefit Of BoatUS Membership

Membership Benefits Include:

Subscription to the print version of BoatUS Magazine

4% back on purchases from West Marine stores or online at WestMarine.com

Discounts on fuel, transient slips, repairs and more at over 1,200 businesses

Deals on cruises, charters, car rentals, hotel stays and more…

All for only $25/year!

We use cookies to enhance your visit to our website and to improve your experience. By continuing to use our website, you’re agreeing to our cookie policy.

Navigation Lights for Sailboats (And How To Read Them)

Last Updated by

Capt Chris German

June 15, 2022

Navigation lights on a sailboat can be confusing. If you understand the reason behind why they are the way they are however, they can make a lot more sense.

At their heart, sailboats are really just a power boat and as such must adhere to all power boat rules such as navigation lights. Other times however, a sailboat is classified in a special category. They have a set of additional lights they CAN show as an option, but are not always required to do so.

That’s about as clear as mud if you ask me and I contend that that is where the confusion about lighting a sailboat begins.

Just because you can show a light to identify yourself in times of low visibility, does not mean you have to and then we add in a little sibling rivalry between power and sail and things get downright adversarial when it comes to navigation and the night.

Table of contents

The USCG says You’re a Power Boat Whether You Like It or Not

Much to the consternation of many a sailor who has earned a commercial license to drive their sailboat, when you received your credential from the USCG it says you are a master of steam and power across the top with no mention of wind as a source of propulsion.

It is not until you read the back pages of your little red book that feels like a passport and looks like a US Sailing credential, that you will see the term “sail auxiliary”. That is because most of the time the U.S. Coast Guard knows that you are primarily reliant on your mechanical power to propel your vessel.

It's a sad thing, but the days of commercially viable sail boats are done and all but the most select few even have sails let alone use them as their primary power source. All sail boats by law are powerboats, but not all powerboats are sailboats.

Navigation Lights for a Power Boat

As a power boat, you are required to show certain lights and have been required to do so before power was even invented.

In the days of man powered vessels like the viking ships who relied on oars while in close quarters to power their vessels, they needed to show other boats, friend or foe, where they were by showing lanterns in the dark to identify themselves. As you know, it is a time honored rule among all the nations of the world both past and present, that you must avoid a collision at all costs while at sea and even the viking knew that you should not run into things.

By lighting the front and back of your boat, you could warn other boats of your presence as well as identify which way you were heading. As such there is a very specific rule in the Code of Federal Regulations Number 46 (CFR46 by common name) that spells out with detail how many, the color, the luminosity or brightness, the angle of visibility and the location of all of the lights required for navigation on every single boat, seaplane, submarine and other nondescript vessel conceived by man to date that they must show while underway in reduced visibility.

And there is no flexibility in the rules.

As such a power boat, and by extension all sailboats, MUST, without question show one green light on the starboard bow and one red light on the port bow and one all around white light or lights while operating in reduced visibility. These lights should shine at all 360 degrees of visibility with the bow lights shining at an angle of dead ahead to 22.5 degrees abaft the beam and the stern lights shining 225 degrees dead aft. A forward facing masthead light that is white in color shall shine forward to comply with the directive that all vessels must carry an all around white light. For more read here .

As you can see, there isn’t much wiggle room when it comes to lights that must be shown.

Sailboats get a little flexibility with lights

Sailboats however, are a little different when they are in fact sailboats, which is only when you are entirely reliant on the wind for power and in no way reliant on any mechanical or manual means of propulsion. And for good reason.

Back in the day when men were men and sailboats were wooden, fire was a major concern. Sails were coated with wax and other flammable substances and the wood on boats was saturated with oils and grease. Even the ropes were plant materials saturated with oils to keep them pliable and strong.

Add those highly flammable substances to a parching environment like the sea and you had what was essentially a giant floating tinderbox.

Then tell that giant floating tinderbox that they need to identify themselves to the world at large at night using oil lamps with flames because batteries and lights were not invented yet. It didn't take very long or very many ships burning to the water line for the Governments to say to the sailboats, you get to do things a little different.

As such, sailboats are given special dispensation when it comes to lights aloft. They don't have to show an all around white light in their rigging because no one wanted to set their rig on fire with oil lamps 60 feet up in their rig.

However, when a sailboat takes their sails down such as when they are powered or at anchor, they must resume the display of an all around white light or lights aloft. That became a real challenge with aluminum masts and the disappearance of rat lines on the shrouds because there was no easy way to climb the rig and check the bulbs up the mast on a regular basis.

Red over Green Sailing Machine

I have no idea where the history of this particular light comes from, but if you ever take a deck exam with the USCG, you better remember this mnemonic. An all around red light over an all around green may be displayed on a vessel during times of reduced visibility to indicate that a vessel is operating under sail power alone.

I won’t even speculate on how or why they came up with this particular light configuration, but if you want to use these lights as a sailing vessel, you can do so, but that means that you will need three all round lights at the top of your mast, an all around white, an all around red and an all around green, just in that order.

The red over green is to be displayed in addition to the running lights or the red and green bow lights with the 225 degree stern light. As always, when the motor comes on, so does the steaming light or the forward facing white light that is also usually about ¾ of the way up on your mast to complete the requirement of an all around white light that indicates a power vessel.

What is a “steaming light” and why are you mentioning it now?

Most sailboat electrical panels will have a switch that is labelled “steaming light” and it will only come on when your anchor light is off. This is probably the most confusing part of sailboat navigation lights so if you are confused about this, you're in good company as most people are.

A “steaming” light is named thusly, going back to the days of steam powered sailboats where when they fired up their boilers and doused the sails, they became a power boat once again. There aren’t too many steam powered boats, let alone steam powered sailboats, but the name stuck and it is a vestige of a bygone era.

Either way, when you fire up your motor, you turn on your “steaming light” and that locks out the all around white light which is used for anchoring to minimize the number of switches on your panel and reduce the number of wires in your mast. The fewer wires, the less chance of something not working or becoming disconnected.

The steaming light and the anchor light both go up the mast, but you can’t use an all around white light while using the 225 degree stern light at the deck level because to other boaters you would look like you have two white lights from the stern and that would be confusing.

The anchor light is used exclusively for anchoring while the steaming light is used to indicate you are a power vessel while underway.

As to why I am mentioning it now in the article, is because this would have blown your mind if I started with this subject cause it can be really confusing stuff.

Aspect Recognition with Lights

Remember when I said earlier that lights can help you tell others which way you are heading as well as tell you which way other boats are heading? That is called the aspect of the vessel and the USCG tests you on this for your deck exam as well.

Knowing that the bow lights go 22.5 degrees abaft the beam on both sides or 112.5 degrees on each side, and the stern light faces 225 degrees aft for a total of 360 degrees of visibility, you can tell a lot about where a boat is heading and who has the right of way.

One thing that's easy to remember is red means stop and if you see a vessel's red light, it means stop as you are the give way vessel and approaching the other vessel from his port side. Conversely it works with green as well as that means you are approaching from the other vessel's starboard side and you are the standon vessel.

If you see a red and green light equally low on the horizon, that means your heading dead on into another vessel's path and conversely if all you see is a white light low on the horizon, it means you are overtaking another vessel power or sail, we don’t care because it is an overtaking situation. However, any time you do see a white light aloft in addition to the red and green bow lights, you know you are encountering a power boat.

Then there are angular approaches as well, where you see white and red or white and green light low on the horizon. You know in that case you are seeing a portion of the bow lights and stern lights from the side approaches of a vessel. Based on which direction those lights are heading, you can deduce which way that boat is going in relation to your boat.

So put it all together and you see a green light and a white light low on the horizon with a red over green light aloft, you know that you are approaching a sailboat that is traveling to your port and that might make you the standon vessel. That is of course, if we didn’t concern ourselves with windward and leeward and port tacks and starboard tacks, but that is a discussion for another article. So stay tuned when we talk about sailing rules and the right of way. But for now, do good, have fun and sail far.

Capt Chris German is a life long sailor and licensed captain who has taught thousands to sail over the last 20 years. In 2007, he founded a US Sailing-based community sailing school in Bridgeport, CT for inner city youth and families. When Hurricane Sandy forced him to abandon those efforts, he moved to North Carolina where he set out to share this love for broadcasting and sailing with a growing web-based television audience through The Charted Life Television Network.

by this author

Navigation Lights for Sailboats (And How To Read Them)

Most Recent

What Does "Sailing By The Lee" Mean?

Daniel Wade

October 3, 2023

The Best Sailing Schools And Programs: Reviews & Ratings

September 26, 2023

Important Legal Info

Lifeofsailing.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon. This site also participates in other affiliate programs and is compensated for referring traffic and business to these companies.

How To Choose The Right Sailing Instructor

August 16, 2023

Cost To Sail Around The World

May 16, 2023

How To Drive A Pontoon Boat

Jacob Collier

December 19, 2022

Best Liveaboard Catamaran Sailboats

December 28, 2023

Can a Novice Sail Around the World?

Elizabeth O'Malley

Best Electric Outboard Motors | Life of Sailing

4 Best Electric Outboard Motors

How Long Did It Take The Vikings To Sail To England?

10 Best Sailboat Brands | Life of Sailing

10 Best Sailboat Brands (And Why)

December 20, 2023

7 Best Places To Liveaboard A Sailboat

Get the best sailing content.

Understanding Boat Navigation Lights

Boat navigation lights are essential when you’re out on the water. They’re essential, but it’s easy to misunderstand their uses and correct placements.

If you don’t know the correct placement for your stern lights or know what type of navigation light you need on your mast, don’t worry: we’re here to help. Below, we’ve got an overview of everything you need to know about boat navigation lights: what type of navigation lights you need, where to put them, and why you need to use them.

So without further ado, let’s learn more about boat navigation lights.

What navigation lights are required on a boat?

The U.S. Coast Guard Navigation Rules, International-Inland encompasses lighting requirements for every description of watercraft. The information provided there is intended for powerboats and sailing vessels less than 20 meters. The various options are illustrated.

The U.S. Inland Rules apply inside the demarcation lines at the entrances to inlets, bays, rivers, etc. The demarcation lines are shown on coastal charts as magenta dashed lines. Once outside of the demarcation lines, International Rules apply.

Powered Vessels

Power boats less than 20 meters shall exhibit navigation lights as shown in Figure 1. (Note: 2 masthead lights are optional for vessels under 50 meters. Vessels over 50 meters will display two masthead lights.)

Vessels of less than 12 meters in length, may show the lights in either Figure 1 or Figure 2.

Powerboats less than 7 meters whose maximum speed cannot exceed 7 knots may exhibit an all-round white light, and if practicable sidelights instead of the lights prescribed above, in international waters only.

Sailing Vessels and Vessels Under Oars

Sailing vessels less than 20 meters may exhibit the navigation lights shown in Figures 3 or 4.

Another option for sailboats is to use a single combination lamp at the top of the mast as shown in Figure 5.

Sailing vessels less than 7 meters may carry an electric torch or lit lantern showing a white light to be displayed in time to prevent collision (see Figure 6 – left picture).

If possible, the lights prescribed for sailing vessels less than 20 meters should be displayed.

Vessels under oars may display the lights prescribed for sailing vessels, but if not, must have ready at hand an electric torch or lighted lantern showing a white light to be displayed in time to prevent collision (see Figure 6 – right picture).

Small boats can benefit from using a temporary LED light with a suction cup attachment if permanent fixings aren’t possible.

Shapes and Lights

To alert other vessels of conditions that may be hazardous, there are requirements to display lights at night and shapes during the day.

Anchored Vessels

Powered vessels and sailing vessels at anchor must display anchor lights. An anchor light for a boat less than 50 meters in length is an all-around white light visible for 2 miles exhibited where it can best be seen (see Figure 7).

Vessels at anchor shall exhibit forward where best seen, a ball shape (see Figure 8).

Vessels less than 7 meters are not required to display anchor lights or day shapes unless anchored in or near a narrow channel, fairway or anchorage, or where other vessels normally navigate.

Anchor lights are not required on vessels less than 20 meters, anchored in special anchorages in inland waters designated by the Secretary of Transportation.

Sailing Vessels Under Power

Vessels under sail also being propelled by machinery, must exhibit forward where best seen, a conical shape with the apex pointing down (see Figure 9).

Vessels less than 12 meters are not required to exhibit the dayshape in inland waters.

Sailing vessels operating under machinery, or under sail and machinery are considered as powered boats and must display the lights prescribed for a power-driven vessel.

Restricted Maneuverability

The Navigation Rules require vessels restricted in their ability to maneuver to display appropriate day shapes or lights. To meet this requirement, recreational vessels engaged in diving activities may exhibit a rigid replica of the international code flag “A” not less than one meter in height or at night display the navigation lights shown in Figure 10.

This requirement does not affect the use of a red and white divers flag which may be required by state or local law to mark a diver’s location. The “A” flag is a navigation signal indicating the vessel’s restricted maneuverability and does not pertain to the diver.

Navigation lights should be checked prior to departing the dock and you should always carry spare bulbs. The USCG doesn’t care if they were working when you left, only that they are working when required.

Where do navigation lights go on a boat?

The current navigation light requirements are found in the Navigation Rules, International-Inland, and in Parts 81, 84, and 89 of Title 33, Code of Federal Regulations . They’re easy to find, but many sailors and boat manufacturers do not have a good understanding of the rules governing the proper installation of navigation lights. To help clear up any misunderstandings here’s all you need to know:

Sidelights that are installed in the contour of the bow without providing a mounting surface tooled to be parallel with the fore and aft centreline of the boat are not in compliance with the Inland or International Navigation Rules. Depending on the breadth of the boat near the bow and how far aft from the vessel’s stem the lights are mounted, this shift can be more than 20 degrees in some cases. Installing the fixtures too far aft of the vessel’s stem may result in the sidelights not being visible from a position dead ahead.

Another factor in the proper installation of sidelights is that they must maintain their required minimum intensity in a vertical sector from 5 degrees above to 5 degrees below the horizontal. They must also maintain at least 60 percent of their minimum required intensity from 7.5 degrees above to 7.5 degrees below the horizontal. Installing flush-mounted sidelights, designed to be mounted to a vertical surface in the hull contour, without providing a mounting surface tooled to be vertical, shifts the vertical coverage sector. This also results in non-compliance with the Inland or International Navigation Rules.

Additionally, most of these flush-mounted sidelights are installed below the vessel’s rub rail. International Navigation Rules require that sidelights be installed above the uppermost continuous deck. Therefore, this configuration would not be in compliance with International Navigation Rules.

When separate red and green sidelight fixtures are used, the masthead light or all-round white light, whichever configuration is installed, must be located as close as practical to the vessel’s fore and aft centerline. For vessels less than 12 meters in length, the masthead light or round lights may be displaced from the fore and aft centerline providing that the sidelights are contained within a common fixture and mounted on the vessel’s fore and aft centerline. The masthead or round lights must be installed at least one meter (3.3 ft.) above the sidelights.

Which navigation lights are you required to display when anchoring your boat for the night?

Boating at night (or in reduced visibility) can present some special challenges. Not only is your depth perception lessened, but bright lights on the shore can also cast misleading reflections on the water and if you wear glasses, or worse yet bifocals, you simply don’t see as well at night as you do during the day.

It is not only important that you be able to identify other vessels operating in your proximity, it is equally important that other vessels see you. Most recreational vessels are less than 30 feet in length and, according to the Rules of the Road, shall be equipped with navigation lights.

These lights not only have a certain arc through which they can be seen but must be seen from a minimum distance. The following lighting requirements are for recreational vessels less than 12 meters in length. (approximately 39.4′)


Masthead Light	225º	White	2
Starboard Side Light	112.5º	Green	1
Port Side Light	112.5º	Red	1
Stern Light	135º	White	2

The arc of the lights and color allows you to determine the direction a boat is moving. How good are your boat’s lights? You should test them to check your nighttime visibility, or you might land yourself in hot water with the Coast Guard.

Whether on a trailer or at the marina, switch on your lights and see how well they can be seen. Walk away from the boat or row away, if you are at anchor or at a mooring, and see how visible the lights are as you move further away. How easy are they to see against the background of lights onshore?

Does your stern light shine dead astern over the required 135º arc or does it shine to one side or up or down? Can it be seen from the required 2 miles and why is that important? As an example, let’s say that your stern lights can only be seen for 1/2 mile. You are underway at 8 knots and a large ship is approaching at 15 knots. The ship is only 4 minutes away from a collision with you. By the time the ship “might” see you, identify the light, and decide on how to move, it is too late. A ship traveling at 15 knots may take miles to stop.

Look at the stern lights again, as you move from the stern toward the bow, does the stern light “disappear” as the sidelight “appears”? The stern light should disappear and sidelight appear at 22.5º abaft the beam. If you don’t see the green starboard sidelight or the red port side light when the stern light disappears there is a problem with the arc of one or all these lights. This means that if another boat were approaching you at the angle where no lights are seen there is an increased risk of collision.

If both the stern lights and side lights are seen brightly at the same time you still have a problem. A boat approaching won’t know whether they are overtaking or crossing and whether they should give-way or stand-on.

You should also check to make sure that your masthead light disappears at the same time each side lights disappear and they both disappear when the stern light appears.

Check your sidelights from dead ahead. You should see both red and green. However, by moving toward one side just 1-3º you should then see only one light. If you still see two lights, an approaching boat won’t be able to tell which direction you’re are going.

It is very important to be seen from a distance but also for an approaching boat to be able to determine your direction of travel.

When boating at night remember the following: “When two lights you see ahead, turn your helm and show your red”.

About Chris

Outdoors, I’m in my element, especially in the water. I know the importance of being geared up for anything. I do the deep digital dive, researching gear, boats and knowhow and love keeping my readership at the helm of their passions.

Categories : nauticalknowhow

Robert Hogward on September 12, 2021

Thanks for writing this post. I can either place them on the exterior or interior for decorations. Placing them on the exterior side is helpful when I go fishing and indulging in other night activities in the water.

Dalton Bourne on July 26, 2022

We love the lights! We put lights from Seaponer on my Jon boat right above the water line and use them for night fishing! The amount of brightness it offers is an assurance of my boat’s being seen clearly during the night. At the same time, the LED lights don’t consume too much energy, leading to a life span of up to 50,000 hours.

More in nauticalknowhow

How to Tie a Boat to a Dock

How to Clean a Boat Cover

Everything You Need to Know About Your Boat’s Bilge Pump

4 Ways to Tie Your Boat Shoes

The People’s Poncho Review and Ratings

Oru Lake Kayak Review

What Is A Gunwale?

131 of the Best Hawaiian Boat Names

167 Patriotic Boat Names

About boatsafe.

Established in 1998, BoatSafe is your independent guide into the world of boating, fishing, and watersports. We provide expert insights and detailed guides to help you find products tailored to your needs and budget.

Contact Boatsafe

Address: 4021 West Walnut Street. Rogers, AR 72756
Phone: (479)339-4795
Email: [email protected]

Site Navigation

How We Test
Corrections Policy
Privacy Policy
Terms & Conditions
Editorial Policy
Affiliate Disclosure

Our Reviews

The $tingy Sailor

Diy trailerable sailboat restoration and improvement without throwing your budget overboard.

How to Add an Anchor Light For Less

Early on in our sailing career, the first mate and I discovered that we really enjoy anchoring out overnight. The bays in the North Idaho lakes where we cruise are surrounded by snow-capped mountains, covered by crystal clear starry skies, and afford plenty of privacy. The problem was, Summer Dance didn’t have an anchor light, which is a shame because according to the original invoice that I have, it would have only cost $36 in 1981 when she was built. Not even $tingy Sailor can add one that cheaply today.

According to Rule 30, paragraph (e) of the United States Coast Guard Navigation Rules (COLREGS), an anchor light is not always required on sailing vessels the size of the Catalina 22:

“(e) A vessel of less than 7 meters in length, when at anchor, not in or near a narrow channel, fairway, anchorage, or where other vessels normally navigate, shall not be required to exhibit the lights or shape prescribed in paragraphs (a) and (b) of this Rule.”

That pretty much sums up where we anchor most of the time although occasionally in a quiet anchorage. Seven meters equals 22.9659 feet. The length of a Catalina 22 hull is 21.5 feet, a foot and a half under the minimum length for a mandatory anchor light. But not wanting to get run into by drunk or wayward powerboaters, I took on the challenge anyway.

The good news is that the hull was already wired for one. I found one end of the positive wire near the breaker panel and labeled “Mast.” They probably wired them all that way during manufacturing and only added the hardware if ordered. The first hurdle was finding the other end of that wire. Almost all of the wiring in the first generation C-22s is embedded in the fiberglass of the boat. This makes the wiring mostly unserviceable. When no mast light is installed at the factory, there is also no mast wiring connector near the step. Fortunately, Catalina made a little dimple in the cabin roof a couple inches to the left of the mast step to indicate where the mast wiring terminates inside the upper deck.

Drilling for copper

Starting with a 1/4 twist bit, I cautiously drilled into the dimple and was relieved when the bit broke through into a void between the roof deck and the cabin liner. Then with a 1/2″ hole saw, I opened up the hole so that I could fish the wire ends out of the void with a coat hanger. About a foot of 16 gauge black and white wiring emerged that hadn’t been touched in 33 years. I connected the ends to the female half of a Sea-Dog 426262-1 polarized connector and screwed it into pilot holes in the deck sealed with butyl tape. I connected the other end of the positive wire to one of the breaker switches in the electrical panel. The other end of the negative wire was already connected to a common ground wire that runs along the port hull seam and serves the port dome lights and the bow navigation light.

With power to the mast step, the rest of the circuit needs to be inside the mast. I pulled 25′ of 16/2 duplex wiring through the mast and made a loop in the cable with a Zip Tie around the masthead bolt to carry the weight of the cable instead of the light connections. Before making the connections on both ends, I slipped closed cell foam pool “noodles” over the cable inside the mast. These prevent the cable from being damaged by hardware fasteners that protrude inside the mast and they prevent the mast from ringing from the cable slapping inside the mast when at anchor. This is much easier and cheaper to install than the recommended PVC conduit.

Closed-cell foam pool noodles for conduit makes for a silent mast.

I drilled a 1/2″ hole in the bottom of the mast on the port side above the step and installed a rubber grommet. I ran the lower end through the grommet, slipped a piece of braided flex loom over the end to dress it up and connected the conductors to the male end of the deck connector.

It’s lonely (and expensive) at the top

At the top of the mast, the conventional wisdom is to use parts from a certain Catalina parts dealership:

Z2004 Navigation Anchor Light
D1157 Anchor Light Mast Mount Tube
Z1798 Anchor Light Tube Installation Kit (if you don’t already own the right drill bits and taps)

But that’s over $70 before replacing the incandescent bulb with the LED array that I described in Convert Your Lights To LED Bulbs For More Light With Less Power . Being one who doesn’t always follow the conventional wisdom, I purchased the same Aqua Signal series 25 light from my local marine discounter for $10 and set out to fabricate my own mast mount tube.

I used a leftover piece of 1″ aluminum tube from my bimini project and purchased a 3/4″ length of 2-1/2″ diameter UHMW rod from my local specialty metals shop. Along with a through hole for the wiring, I drilled a 1″ diameter countersink in the bottom of the disk to accept the tube, countersank two panhead screws through the sides to attach the disk to the tube, and drilled three pilot holes in the top of the disk to mount the light.

The assembled mount is very solid. At the bottom of the tube, I cut out a profile to fit the side of the masthead casting and I drilled and tapped the masthead for two 10-24 machine screws to attach the completed light assembly.

I also drilled a 1/4″ hole through the bottom of the masthead to route the wires up through the tube and into the light base where they connect to the terminal screws.

To finish the project, I replaced the 10 watt incandescent bulb with a 3.6 watt cool white LED array (#819279) from Sailboatowners.com . The LEDs put out brighter light than the old style bulb and use a third of the power.

Anchor light with incandescent bulb (L) and LED array (R)

Now we’re properly lit while staring at the stars from our king size bed made up in the salon .

The Bottom Line

Suggested price: $163.68 $tingy Sailor cost: $61.76 Savings: $101.92

Most C-22s have a similar anchor light setup. Is yours different and how do you like it?

Yachting Monthly

Digital edition

Anchor lights: are you sure you’ll be seen?

Chris Beeson
January 4, 2016

With one all-round white anchor light, as most boats have, are you sure you'll be seen? Alastair Buchan asks if it’s time to update the COLREGS

COLREGS stipulate a single white all-round light for a yacht at anchor but it can easily be lost in the backscatter Credit: Colin Work

Last October, 175 years after the rules on anchor lights were introduced, the MCA’s Safety of Navigation Committee (UKSON) considered whether they needed updating. I sat in on the meeting.

In 1840 Trinity House first insisted anchored vessels showed ‘where it can best be seen, but at a height not exceeding 20 feet above the hull, a white light in a globular lantern of eight inches in diameter and so constructed as to show a clear, uniform and unbroken light, visible all around the horizon, and at a distance of at least one mile’.

COLREGS ANNEX 1

(a) A vessel at anchor shall exhibit where it can best be seen:

(i) in the fore part, an all-round white light or one ball;

(ii) at or near the stern and at a lower level than the light prescribed in subparagraph (i) an all-round white light.

(b) A vessel of less than 50 metres in length may exhibit an all-round white light where it can best be seen instead of the lights prescribed in paragraph (a) of this Rule

(c) A vessel at anchor may , and a vessel of 100 metres and more in length shall also use the available working or equivalent lights to illuminate her decks.

Today Rule 30 (Annex 1) of the International Regulations for the Prevention of Collision at Sea says that between sunset and sunrise anchored vessels of 50m LOA or less must show from the bows an all-round white light with a range of two miles, adding ‘no other lights shall be exhibited, except such lights as cannot be mistaken for the lights specified’. No height above hull is specified, but if a second anchor light is displayed it must be lower than the one in the bows. The MCA ‘believes the current status-quo, as per Rule 30 with regard to lights and shapes, is adequate for all vessels at anchor.’

Trinity House’s choice of a fixed anchor light is understandable. The MCA’s is not. In 1840 street lighting was very scarce. Pall Mall lit the UK’s first public gas street light in 1807. The first electric street light on the Thames Embankment in 1878 proved so popular another 4,000 were added inside three years. Now the country is dazzling by night with public light.

Today anyone attempting to pick out an anchor light from amongst a mass of shore lights would wonder how a solitary fixed white light could ever be considered a sensible way of drawing attention to a vessel’s position. Surely it would be reasonable to revise the rules to reflect reality?

We put fairy lights on the topping lift and babystay and hung an LED cluster from the boom end. It’s much easier to see the yacht but is she breaking the law?

The MCA acknowledges the problem but won’t consider changing the regulations. It says ‘that the danger or possibility… of confusing shore lights with anchor lights… is always there and not just for recreational craft but any vessels for that matter, and not just in anchoring. Hence due knowledge and competence, among other topics, of the COLREG and professional judgement(s) by the navigators is always expected/required.’

We spent less than £15 and improved the visibility of a yacht at anchor

Our eyes can spot a flickering candle at 30 miles. The challenge is not seeing a light but distinguishing it from those surrounding it. It is hard to understand just what combination of knowledge, competence and professional judgement will help us to do that.

COLREGS ANNEX 2

Manoeuvring and warning signals

(d) When vessels in sight of one another are approaching each other and from any cause either vessel fails to understand the intentions or actions of the other, or is in doubt whether sufficient action is being taken by the other to avoid collision, the vessel in doubt shall immediately indicate such doubt by giving at least five short and rapid blasts on the whistle. Such signal may be supplemented by a light signal of at least five short and rapid flashes.

Flashing lights stand out but Rule 34 (Annex 2) says you can only display a flashing light if you believe that you are in immediate danger of being run down. This is leaving it late. Imminent dangers give you time to put the kettle on and think, an immediate danger demands a kneejerk reaction.

Once, the Road Vehicle Lighting Regulations (RVLR) stated ‘no vehicle will be fitted with a lamp that automatically emits a flashing light.’ En masse, cyclists chose breaking the law over dying under a car. In October 2005 flashing lights on cycles became legal.

Today, leisure craft are in a similar situation. The MCA recognises the probability of a small vessel’s lights getting swamped by others in the vicinity, but then states that making anchor lights flash isn’t suitable within the COLREG context.

COLREGS PART A

Responsibility

(a) Nothing in these Rules shall exonerate any vessel, or the owner, master or crew thereof, from the consequences of any neglect to comply with these Rules or of the neglect of any precaution which may be required by the ordinary practice of seamen, or by the special circumstances of the case.

(b) In construing and complying with these Rules due regard shall be had to all dangers of navigation and collision and to any special circumstances, including the limitations of the vessels involved, which may make a departure from these Rules necessary to avoid immediate danger.

With their choice limited to some combination of fixed lights, 19th century bureaucrats collected their pensions before agreeing on an all-round white anchor light. While bureaucrats talk, leisure craft could take advantage of Rule 2 (b) and supplement their anchor light with a flashing light. However, ‘immediate’ means happening now, and waiting until you are about to be run down before making your position unmistakeably obvious just because the rules said so is the tidy, but dangerous, possibly fatal, logic of shorebound bureaucrats.

It is fair to say that, when I expressed them, these views were not universally welcomed by the UKSON committee.

Have your say

With furling sails there is less call for foredeck work and so deck lights are becoming a rarity

Do you think the COLREGS should be changed to allow yachts at anchor to be more visible? Vote in the poll below:

Boating Safety
Company News

Experiences

Destinations
Boating Regulations
The Purpose of Boat Anchor Lights

• 5 years, 8 months ago

How to Choose Boating Shoes - Getmyboat

How to Choose Essential Sailing Gear - Getmyboat

How to Choose an Outboard Motor - Getmyboat

How to Choose a Dive Boat

With all of its risks and rewards, boating during the day can be complicated enough, so it follows that boating at night is an even more complex task, as the darkness adds to all the factors present in brighter hours. Anchor lights, the lights that are visible when a boat is anchored at night, are a key factor in making nighttime boating both easier and safer.

If you only take your boat to a designated mooring and never plan on anchoring, then it is not necessary for you to use an anchor light. However, unexpected things always happen on the ocean, so no matter what your plan is, it is best to be prepared for nearly any possible situation.

Types of Anchor Lights

The term “anchor light” refers only to the state the boat is in when it is being used, and has nothing to do with the physical anchor itself. If you have spent some time on the water, you have undoubtedly seen at least one — many of them look like a light on a stick, to put it plainly. On sailboats, anchor lights are placed at the top of the mast, while anchor lights on a motorboat are placed near the bow or stern. Lights for this purpose are increasingly in the form of LED lights, which have less of a drain on the battery. If you are concerned about battery drain, another option is to purchase lights that are charged with solar energy so you can power them up during the day and turn them on at night. Make sure that the charge will last through the night, though!

As with anything that involves the safety of boaters, there are regulations surrounding what types of anchor lights are to be used and how they are to be used.

Regulations and Safety on Anchor Lights

The types and numbers of anchor lights that you must display vary depending on the type of boat that you have. Anchor lights must be all-around white lights, which means that the bulb cannot at any point be restricted. This means that the key to placing an anchor light is to put it where it is visible for 360 degrees. Anchor lights must be placed higher than any other navigational lights, which is the reason that many are placed on a steel pole.

Vessels under 50 meters must display one white all-around anchor light on the highest point of the boat, which must be visible for two miles when visibility is clear. If your vessel is over 100 meters, you must display the light on the masthead or other highest point, in addition to other lights that illuminate your decks so that the shape and size of your boat can be clearly discerned.

Sailboats with masthead anchor lights may also want to consider an additional cockpit light as a safety measure, as boats that are low to the water may on occasion not have a line of visibility to the masthead and as a result could come into contact with your boat.

Sometimes having an anchor light turned on many seem like an unnecessary waste of power, or if you are in a designated anchorage even perhaps silly. Think of it instead as a liability issue — if anyone crashes into your boat during the night, whether it is a dinghy or a supertanker, you are at fault if you do not have an anchor light. Boats are expensive enough to begin with; you do not want to risk having to pay for damages if someone else caused them.

In some specially designated anchorages, it is not necessary to have an anchor light. These anchorages have been determined by the Secretary of Homeland Security and are not just anchorages maintained by a particular town or club, so never assume that an anchorage will not require you to have an anchor light.

Whether or not the anchorage you are using requires you to have an anchor light, it is always better to be safe, particularly in an environment as untamed as the ocean. No matter what size or type of boat you have, you should always have an anchor light to use if necessary. As with many other components of your boat, regularly check to make sure the anchor light is approved by the Coast Guard, so you can be sure you are getting the best product.

Popular Destinations

Lake Travis
Lake Lanier
Newport Beach
Lake Norman

24/7 live support

Help & FAQs
+1 818 927 2148
[email protected]

Real reviews from happy Getmyboaters.

Flashlights
Path Lights
Bike Lights

Fast Shipping to get your products to you fast!

Safety Lights

Accessories
Bike Cleats

May 20, 2022 10 min read

What is an Anchor Light? A Clear Explanation

If you're new to boating, you may have heard the term "anchor light" and wondered what it means. Simply put, an anchor light is a type of navigation light that is used to indicate the position of a stationary vessel at anchor. It is required by law in most countries and is an important safety feature for boaters who anchor at night.

Understanding anchor lights is an essential part of boating safety. Navigation lights are used to signal the position and movement of a vessel to other boats, and anchor lights are specifically designed to signal that a vessel is anchored and not moving. There are different types of navigation lights, but the anchor light is the only one that is required to be displayed when a boat is at anchor.

Key Takeaways

Anchor lights are navigation lights that indicate the position of a stationary vessel at anchor.
Understanding anchor lights is essential for boating safety.
Anchor lights are required by law and are an important safety feature for boaters who anchor at night.

Understanding Anchor Lights

An anchor light is a type of light that is used to signal the location of a vessel at anchor. It is typically a white light that is mounted at the top of the vessel's mast. The purpose of the anchor light is to make the vessel visible to other vessels in the vicinity, especially at night.

The anchor light is required by law when a vessel is at anchor between sunset and sunrise. The light must be visible from all directions and must be of sufficient intensity to be seen by other vessels at a distance of at least two nautical miles.

The all-round white light is the most common type of anchor light. It is a white light that shines in all directions. The all-round white light is required for vessels less than 50 meters in length, while vessels over 50 meters in length must also display an additional masthead light.

In summary, the anchor light is a vital safety feature that helps to prevent collisions between vessels at anchor. The all-round white light is the most common type of anchor light, and it is required by law for vessels at anchor between sunset and sunrise.

Types of Navigation Lights

Navigation lights come in different types , each serving a specific purpose on a vessel. In this section, we will explore two types of navigation lights: sidelights and stern lights.

Sidelights are navigation lights that are mounted on the port and starboard sides of a vessel. These lights are typically red and green, respectively, and are used to signal the direction in which the vessel is traveling. The red light is on the port side, and the green light is on the starboard side.

When viewed from the front of the vessel, the red light should be on the left, and the green light should be on the right. Sidelights are essential when navigating in low visibility conditions, such as at night or in foggy weather.

Stern Lights

Stern lights are navigation lights that are mounted on the stern or back of a vessel. These lights are typically white and are used to signal the presence of a vessel to other vessels. Stern lights are also used to indicate the direction in which a vessel is traveling.

When viewed from the front of the vessel, the stern light should be in the center. Stern lights are crucial when navigating in low visibility conditions, such as at night or in foggy weather.

In conclusion, understanding the different types of navigation lights is essential for safe and effective navigation on a vessel. Sidelights and stern lights are just two examples of the many types of navigation lights available, each playing a critical role in ensuring the safety of all those on board.

Anchor Light Visibility

When it comes to anchor lights, visibility is key. Your anchor light must be visible from all directions, including dead ahead, and must be an unbroken light. This means that the light must be visible at all times and cannot be obstructed by anything on your vessel.

To ensure maximum visibility, it is recommended to mount your anchor light as high as possible on your vessel. This will allow the light to be seen from a greater distance and reduce the risk of it being obstructed by anything on your vessel.

It is also important to choose a light with a brightness that is appropriate for the size of your vessel. A light that is too dim may not be visible from a sufficient distance, while a light that is too bright may be blinding to other vessels.

Finally, it is important to regularly check and maintain your anchor light to ensure that it is functioning properly and is visible at all times. This includes checking the bulb, wiring, and any other components that may affect the light's visibility.

By following these guidelines, you can ensure that your anchor light is visible and compliant with regulations, helping to keep you and other vessels safe while at anchor.

Anchor Lights on Different Vessels

When it comes to powerboats , the type of anchor light used depends on the size of the vessel. Small power boats, such as those under 12 meters, typically use a single all-around white light. This light must be visible from 360 degrees and must be placed at the highest point on the boat. Larger power boats, on the other hand, may require multiple anchor lights, including a masthead light and a stern light. These lights are typically required for boats that are over 20 meters in length.

Sailboats also require anchor lights, but the type of light used depends on whether the boat is under sail or at anchor. When a sailboat is under sail, it is required to display a combination of lights that include a red and green sidelight and a white stern light. When the sailboat is at anchor, it is required to display an all-around white light that is visible from 360 degrees.

Sailing vessels that are over 50 meters in length may require additional anchor lights, such as a masthead light and a stern light. These lights are typically required for larger vessels to ensure that they are visible to other boats in the area.

Overall, regardless of the type of vessel, it is important to ensure that the anchor lights are working properly and are visible to other boats in the area. This is especially important at night or in low visibility conditions where it may be difficult to see other boats.

Regulations and Requirements

Inland rules.

If you are operating a vessel on inland waters, it is important to know the regulations and requirements for anchor lights. The Inland Rules specify that any vessel at anchor must display a white light visible for 360 degrees around the vessel. This light must be placed where it can best be seen and must be lit from sunset to sunrise.

Rule 30 and COLREGS

If you are operating a vessel on international waters, you must comply with the International Regulations for Preventing Collisions at Sea (COLREGS). Rule 30 of the COLREGS specifies that any vessel at anchor must display a white light visible for 360 degrees around the vessel. This light must be placed where it can best be seen and must be lit from sunset to sunrise.

According to the Code of Federal Regulations (CFR), all vessels operating on United States waters must comply with the requirements for anchor lights. The United States Coast Guard (USCG) enforces these regulations and can issue fines for non-compliance.

In summary, if you are operating a vessel at anchor, it is important to understand the regulations and requirements for anchor lights. Whether you are on inland waters or international waters, you must comply with the appropriate rules and regulations. By displaying a white light visible for 360 degrees around your vessel, you can help ensure the safety of yourself and others on the water.

Technical Aspects of Anchor Lights

When it comes to anchor lights, LED lights are the most popular option due to their energy efficiency and long lifespan. They are also durable and can withstand harsh weather conditions. It is important to choose LED lights that are specifically designed for marine use to ensure they meet safety standards and regulations.

Battery and Power

Anchor lights are typically powered by a boat's battery. It is important to ensure that the battery is in good condition and has enough power to last throughout the night. To conserve power, it is recommended to use a low-wattage LED light and to turn off unnecessary electronics. It is also important to regularly check the wiring and connections to ensure they are secure and not corroded.

Overall, anchor lights are an essential safety feature for boats, especially when anchored in busy or low visibility areas. Proper installation, maintenance, and testing are crucial to ensure they function properly when needed. By choosing LED lights and ensuring the battery and wiring are in good condition, you can have peace of mind knowing your anchor light will reliably guide you through the night.

Troubleshooting Anchor Light Issues

If you're having issues with your anchor light , there are several things you can try to troubleshoot the problem. Here are some common issues and solutions:

Light is Blocked

If your anchor light is blocked by something, it won't be visible to other boats and could be a safety hazard. Check to make sure there is nothing obstructing the light, such as a sail or other equipment. If the obstruction is unavoidable, you may need to move the light to a different location.

Light is Disabled

If your anchor light is not turning on, it may be disabled. Check to make sure the light is properly connected and that the wiring is not damaged. If the wiring is damaged, it will need to be repaired or replaced.

Light is Enabled but Not Working

If your anchor light is turned on but not working, there may be an issue with the bulb or the wiring. Check to make sure the bulb is securely in place and that the wiring is not damaged. If the bulb is burned out, it will need to be replaced.

Light is Loading Slowly

If your anchor light is taking a long time to turn on, there may be an issue with the power source or the wiring. Check to make sure the power source is strong enough to support the light and that the wiring is not damaged. If the power source is weak, you may need to use a different power source or install a new battery.

Reference ID

If you're still having issues with your anchor light, consult the manufacturer's reference ID or user manual for further troubleshooting steps. You may also want to consult with a professional electrician or boating expert for assistance.

Safety Considerations

When it comes to boating, safety should always be your top priority. An anchor light is an important safety feature that helps other boaters see you in low-light conditions. By law, if your boat is anchored or moored between sunset and sunrise, you must display an anchor light.

Not only does an anchor light help prevent collisions, it also signals to other boaters that your vessel is restricted in its maneuverability. This is especially important in narrow waterways or areas with heavy boat traffic.

In addition, reduced visibility due to weather conditions can make it difficult for other boaters to see your vessel. An anchor light can help you avoid collisions by making your boat more visible.

When displaying an anchor light, it's important to ensure that it is visible from all directions. The light should be placed at the highest point on your boat and should not be obstructed by any equipment or other objects.

By following these safety considerations, you can help ensure a safe and enjoyable boating experience for yourself and other boaters on the water.

Additional Resources

If you want to learn more about anchor lights, there are many resources available to you. Here are a few that you may find helpful:

US Coast Guard Navigation Rules and Regulations Handbook : This handbook is a comprehensive guide to the rules and regulations governing navigation on US waters. It includes a section on anchor lights and provides detailed information on when and how they should be used.
BoatUS : BoatUS is a membership organization that provides a variety of resources and services to boaters. They have a helpful article on anchor lights that explains the different types of lights available and how to choose the right one for your boat.
West Marine : West Marine is a popular boating supply store that carries a wide range of boating products, including anchor lights. Their website has a helpful guide to choosing and installing anchor lights, as well as a selection of lights to choose from.
Anchor Light Automation Tools : There are several automation tools available that can help you manage your anchor light. For example, the Anchor Light Timer is a device that automatically turns your anchor light on and off at the appropriate times, saving you time and effort.

Overall, there are many resources available to help you learn more about anchor lights and how to use them effectively. Whether you are a boater or a web developer, there is something for everyone.

Frequently Asked Questions

What is the purpose of an anchor light on a boat.

An anchor light is a white light that is used to help other boats identify your boat when it is anchored at night. It is required by law to be displayed between sunset and sunrise, and it should be visible from all directions.

What are the height requirements for an anchor light?

The height requirements for an anchor light depend on the length of your boat. For boats less than 50 feet, the light should be at least 3.3 feet above the highest point of the boat. For boats over 50 feet, the light should be at least 6.6 feet above the highest point of the boat.

What is the difference between an anchor light and a masthead light?

An anchor light is used when a boat is at anchor, while a masthead light is used when a boat is underway. An anchor light is a white light that is visible from all directions, while a masthead light is a green and red light that is visible only from the front and back of the boat.

Do I need to have an anchor light on my boat?

Yes, you are required by law to have an anchor light on your boat if you are anchoring at night. It is important to have an anchor light to help prevent collisions with other boats.

What are the best types of anchor lights for boats?

The best types of anchor lights for boats are LED lights, as they are energy-efficient and have a long lifespan. They are also bright and visible from a long distance.

What are the regulations for emergency anchor lights on boats?

Emergency anchor lights are required to be displayed when a boat is in distress and needs assistance. The light should be visible from all directions and should be a white light.

New Sailboats
Sailboats 21-30ft
Sailboats 31-35ft
Sailboats 36-40ft
Sailboats Over 40ft
Sailboats Under 21feet
used_sailboats
Apps and Computer Programs
Communications
Fishfinders
Handheld Electronics
Plotters MFDS Rradar
Wind, Speed & Depth Instruments
Anchoring Mooring
Running Rigging
Sails Canvas
Standing Rigging
Diesel Engines
Off Grid Energy
Cleaning Waxing
DIY Projects
Repair, Tools & Materials
Spare Parts
Tools & Gadgets
Cabin Comfort
Ventilation
Footwear Apparel
Foul Weather Gear
Mailport & PS Advisor
Inside Practical Sailor Blog
Activate My Web Access
Reset Password
Customer Service

Free Newsletter

Whats the Best Way to Restore Clear Plastic Windows?

Beneteau 311, Catalina 310 and Hunter 326 Used Boat Comparison

Maine Cat 41 Used Boat Review

Cheoy Lee Clipper 36 & 42 Used Boat Review

AquaMaps with Bob’s blue tracks and my green tracks at the start of the ICW with bridge arrival times. (Image/ Alex Jasper)

Tips From A First “Sail” on the ICW

Make sure someone is always keeping a lookout on the horizon while the tillerpilot is engaged. If there are a few crew onboard, it helps to rotate who is on watch so everyone else can relax.

Tillerpilot Tips and Safety Cautions

Irwin Vise-Grip Wire Stripper. (Photo/ Adam Morris)

Best Crimpers and Strippers for Fixing Marine Electrical Connectors

600-watt solar panel system on Summer Twins 28 sailing catamaran Caribbean Soul 2. (Photo/ Clifford Burgess)

Thinking Through a Solar Power Installation

Stopping Mainsheet Twist

Working with High-Tech Ropes

Using only what they had available onboard, the cruisers rebuilt a broken clue on their genoa which lasted for thousands of miles of sailing.

Getting a Clue for the Blown-Out Clew

This Hayn Hi-Mod shackle was securing a shroud. The shackle failed without damage to the threads when the rigging wire snapped and the pin unscrewed. Thankfully, there were no injuries and the deck-stepped mast fell to leeward with limited damage to the Corsair F-24. (Photo/ Jim Love)

Monel Seizing Wire is Worth the Extra Cost

This is the faulty diesel lift pump, the arrow is pointing to the sluggish primer lever. That is an issue because the fuel lift pump needs to provide the right amount of fuel and fuel pressure to the injector pump. (Photo/ Marc Robic)

Fuel Lift Pump: Easy DIY Diesel Fuel System Diagnostic and Repair

Ensuring Safe Shorepower

Sinking? Check Your Stuffing Box

Instead of dreading a squall, think about it as a way to fill up your water tanks. PS tested ways to make sure the rainwater you catch is clean, tasty and safe to drink.

The Rain Catcher’s Guide

This is the original Yanmar 4JH5E 54hp normally aspirated engine supplied by Beneteau. We've done 6,000 hours over the last 13 years. (Photo/ Brett Campbell)

Boat Maintenance for the Technically Illiterate: Part 1

A V-Guide in use on stainless pulpit railing. V-Guides keep your drill bit from walking off either side of the curved surface. They are a helpful tool in this scenario since stainless requires steady, slow, lubricated pressure to drill properly.

Mastering Precision Drilling: How to Use Drill Guides

Giving Bugs the Big Goodbye

Galley Gadgets for the Cruising Sailor

Little things that are hardly necessary but nice to have start in the galley.

Those Extras you Don’t Need But Love to Have

The edges of open shade can read as high as 25 percent of sunlight when surrounded by a white deck. (Photo/ Drew Frye)

UV Clothing: Is It Worth the Hype?

Preparing Yourself for Solo Sailing

How to Select Crew for a Passage or Delivery

Preparing A Boat to Sail Solo

On Watch: This 60-Year-Old Hinckley Pilot 35 is Also a Working…

America's Cup sailboats have progressed from deep-keel monohull J-class Yachts, to regal Twelve Meters, to rambunctious wing-sailed catamarans. The rule now restricts boats to a single hull, but allows retractable, hydraulically actuated foils. Top speeds of 40 knots are common. (Photo/Shutterstock)

On Watch: America’s Cup

On Watch: All Eyes on Europe Sail Racing

Dear Readers

Chafe Protection for Dock Lines

Marine Electronics
Personal Gear & Apparel
Safety & Seamanship
Sails, Rigging & Deck Gear
Boat Maintenance

Practical Sailor Tracks Down the Best LED Tri-color Light

Testers take a look at six bulbs and lanterns from the marine led navigation light market..

When it comes to navigation lights aboard sailboats, brighter is definitely better. And our latest tests of LED nav lights proved that more light can be made with less energy. In fact, we found that replacing a conventional incandescent bulb with a light-emitting diode (LED) of similar luminosity can result in up to a 90-percent savings in energy consumed over a given period of time.

Practical Sailor’ s previous evaluations of navigation lights (September 2005 and Jan. 15, 2002) were tests of tri-color

Practical Sailor Tracks Down the Best LED Tri-color Light

Photos by Ralph Naranjo

masthead lights, sidelights, sternlights, and all-around white lights.

For this review, we narrowed the test field and focused solely on LED tri-color navigation lights (sidelights and a stern light combined in a single fixture) because of the under-sail connotation. They are most often used when the engine is off and the alternator(s) is providing no energy boost to the battery bank. This is when miserly current consumption is most appreciated.

LED lights come in all sizes and shapes, and it has been their monumental improvement in efficiency that has made the technology so appealing to energy-constrained sailors.

In the past, the most popular means of meeting the U.S. Coast Guard’s navigation light requirements for boats under 65 feet (see “Nav Light Requirements,” below) was to use an Aqua Signal Series 40 tri-color lamp housing with its long-filament incandescent bulb. Its 25-watt energy appetite not only puts a significant load on the house battery bank, but it requires a heavier-gauge wire be run up the spar in order to avoid an energy-robbing voltage drop. Swapping out the incandescent bulb for an LED drops power consumption significantly and yields just as bright of a light. During a 10-hour night sail, this results in reducing current consumption from about 20 amp-hours down to a scan’t 2 amp-hours. This savings adds up, and the extra cost of the LED bulb or light will pay for itself in longevity and energy savings.

LED Evolution

Since the late 1960s, LEDs have followed a trend that amounts to almost a doubling of light output every 36 months. (If Wall Street had done the same, a $100 investment made in 1969 would today be worth over $500,000.)

Skipping all the esoteric physics and getting down to basics leaves us with one important concept to grasp: By passing a current through certain semiconductors (materials with only a few electron holes), the electron flow instigates photon release—or more simply put, light energy is emitted. Modern LEDs comprise an anode (+) and cathode (-) that meet in a tiny cup-like reflector that contains an “n” and a “p” layer of semiconductor material.

In order to achieve white or colored light, phosphor coatings are used. Another significant breakthrough was the prism-like lens and epoxy-sealed cavity that bundles up many of these semiconductors. The resulting “bulb” reflects and refracts the light energy produced, delivering a color-controlled beam. The plasma-like brilliance of a single-source light creates lens and reflector challenges that each light manufacturer has to deal

with. Some makers shape a single beam with lens elements while others use an array of multiple smaller LEDs.

What We Tested

Each of the six LED tri-color masthead lights we tested for this report took a different approach to implementing the LED technology. The test field included three LED lanterns and three LED bulbs.

From Orca Green Marine (OGM), maker of the top choice among tri-colors in the 2005 Practical Sailor test, we reviewed the latest USCG 2-nautical-mile approved tri-color. The other tested lanterns were self-contained tri-color/anchor light combos from Signal Mate and Lopolight.

Among the bulbs we tested was the Lunasea, a sealed, waterproof LED lamp comprising four green, six red, and six white LEDs. From the LED Shop in Queensland, Australia, we tested the Bay15D white LED bulb with 15 diodes. The supplier recommends its use as a low-consumption (2 watts vs. 25 watts) replacement bulb for the Aqua Signal 40 incandescent. The second sealed bulb we tested was from Dr. LED, and it is third-party certified to U.S. Coast Guard standards.

LED LANTERNS

Boat owners who don’t already have a masthead tri-color light, or who plan to replace an old one—hardware and all—would do well to consider an LED lantern.

Orca Green Marine

OGM Inc.’s USCG-approved (third-party tested) tri-color/anchor light (LXTA-12v) squeezes an amazing amount of light from a minimal amount of current (0.3 amps @ 12 volts-DC).

The well-sealed, nicely machined housing and large lenses keep the LEDs in direct line of sight, regardless of heel or the viewer’s proximity. Hard, anodized endcaps and Lexan outer lens elements form a tough, water-tight seal. Its internal

electronic components are potted in a dielectric sealant, and the lantern comes with a well-sealed pigtail connector.

The manufacturer claims a 50,000-hour full brightness LED life and offers a two-year warranty on the $340 lantern.

Testers’ main concern that arose during testing was that the OGM lantern produced the most RFI of all the gear we tested. Moving the handheld VHF radio to within 14 inches of the light obliterated radio reception.

Bottom line: The OGM lantern is the least expensive in its category, and it proved to be a well-made light. However, its RFI test results held it back.

This expensive, well-designed, and carefully manufactured LED tri-color/anchor light offers a multiple diode approach to illuminating each sector of coverage. The lamp’s geometry focuses individual LEDs in narrower beams and uses 36 to cover each colored zone and 44 in the white zone. In addition to adding redundancy with circuitry that allows individual diodes to fail without taking out the entire cluster, the design eliminated the hotspot inherent in tri-color lights that use single-point light sources for each sector.

This light offers a green that’s really green (see “Shades of Green,” page 14), a dead-ahead aspect with minimal overlap, and a crisp transition to the red zone. The Lopolight also sports a rugged, well-sealed housing that’s fully submersible.

Its current consumption is a tiny bit more than the most energy efficient in this group, but the value of having the light continue to work even if one or more diodes give up the ghost is a big plus.

At $689, the Lopolight was the most expensive product of all those we tested, but it also had the least RFI. It comes with a five-year warranty.

Bottom line: If quality construction and superior performance are your priorities—and cost isn’t a concern—the Lopolight will fit the bill. It gets the nod as Practical Sailor’s Best Choice.

Signal Mate

Signal Mate products are designed and manufactured by Maryland-based Kimberlite Assemblers Inc. The company sent us a pre-production version of its 2-nautical-mile tri-color lantern for testing.

The searing bright lantern scored high marks for energy efficiency. Its 0.3 amp draw at 12 volts DC compared to some of the more expensive lanterns.

The Signal Mate incorporates a finned alloy base that functions

as a heat sink and houses the driver and diodes within a polycarbonate cylindrical tube. Its endcaps and electronics are sealed and bedded in Dow Tough Gel.

Its cylindrical shape makes it well suited for masthead mounting. The light output did not appear hampered at all by the unit’s comparably small lenses, even at varying angles of heel.

The design, with a single light source per sector, created a white hotspot, but from 50 to 100 yards away, it was undetectable. Hotspots, a bright white spot that occurs when a single-point white light source illuminates a colored faceted lens, are common to this design.

Just before going to press with this review, Signal Mate sent us its new production version of this lamp. Like the pre-production unit, the LED circuitry is enclosed in a polycarbonate cylinder, but it now incorporates O-ring seals and 3M 5200 adhesive to better cope with thermal expansion and contraction. Heat dissipation and RFI suppression have been improved, and the overall fit and finish have been raised a notch. The light is certified to USCG and American Boat and Yacht Council (ABYC)-16 standards.

Bottom line: The $359 Signal Mate tri-color is a cost-effective option with a good five-year warranty, and the new version boasts some necessary improvements.

The new breed of LED bulbs can add efficiency to those old Aqua Signal, Hella, and Perko incandescent nav lights that have been serving boats for decades. These plug-and-play conversions from incandescent to much more efficient LED technology are capturing market share, and the degree of this success has inspired Aqua Signal to come out with its own single-diode LED light and a new line of LED products. For those with older lamps such as the venerable Aqua Signal 40 tri-color, the following three bulb options represent good examples of what’s available in the realm of LED conversions.

The Dr. LED Polar Star 40 replacement bulb for the Aqua Signal 40 lantern comes with an interesting note. According to the Seattle firm, “a white LED should not be used behind colored lenses.” And to that end, its LED replacement bulb has three distinct color-enhanced sectors indigenous to the bulb itself. These are not stand-alone red, green, and white sectors, but instead are color-enhancing segments that ensure that red is red and green is a bright and deep shade of green. This reduced the bulb’s hotspot.

The bulb is designed in the U.S., made in China, and meets the 2-nautical-mile visibility, chromaticity, and other demands of the ABYC/USCG standards. It was the lowest current-consuming light in our test (0.1 amps), and though not the

brightest, it was visible and color recognizable at the 2-mile range.

Bottom line: Middle of the pack price-wise, this $50 current miser gets a Practical Sailor Budget Buy among LED bulbs for conversions.

Lunasea Lights

This well-sealed, wedge shaped, waterproof bulb uses separate LEDs for each color zone. The red sector held six LEDs, and the green four. Light-meter readings indicated that the red sector was a bit brighter than the green sector during tests. At distances beyond 100 yards, the discrepancy was not noticeable visually. Both segments could be seen at the 2-nautical-mile range.

This bulb seemed to only need a clear housing because of the excellent chromaticity match, but without being placed in a tri-lens housing, it had a rather large overlap of red and green. We noted that the red and green (bow-on aspect) covered an arc of more than 20 degrees. But by placing the tri-color lens over the bulb, the overlap was brought into an acceptable 10-degree range, creating a bright, very distinguishable tri-color light.

The Lunasea bulb was the only one in its group with the ability to keep shining even if one of the multiple diodes failed.

Bottom line: One of the brightest LEDs tested, the Lunasea light gets the Practical Sailor Recommended pick among bulbs for its top performance and lifetime warranty, the only test product to offer one.

Distributed by the Australia-based LED Shop, the white BAY-15D bulb we tested was a cluster of 15 diodes in pentagonal array of three vertical diodes per segment. This bright-white light makes a superb anchor light, and the LED Shop also recommends it as a replacement bulb for the Aqua Signal Series 40 tri-color light.

In our testing, it provided a bright red and green sector, but its colors were not as saturated as the color-specific bulbs by Dr. LED and Lunasea.

Testers’ biggest concern was the fact the bulb isn’t properly sealed. This does afford better heat dissipation, a key factor in LED longevity, but we prefer sealed bulbs.

However, the BAY-15D’s $27 price tag, its brightness and

minimal RFI make it a bargain as an anchor light bulb.

Bottom line: Although inexpensive and a good performer, the BAY-15D was held back by its lack of a good seal.

Nav Light Requirements
How We Tested
Practical Sailor Value Guide: Led Tri-Color Masthead Lights
Shades of Green
View PDF Format

Responding to Emergencies: A Skipper’s Guide for Staying Calm

Which version of the OGM was tested for this review?

It would be helpful if you added the part numbers of the specific product that you’re testing. For example, when I went to the Lopolight website, I couldn’t find the product you tested. I’m a little disappointed that you didn’t test any trilights with the strobe or flash function. Perhaps I’ll keep my 20-year old Hella.

Latest Videos

The Perfect Family Sailboat! Hunter 27-2 – Boat Review

Pettit EZ-Poxy – How to Paint a Boat

The Boat From True Spirit – Sparkman & Stephens

Top 5 Boat Hacks – Boat Maintenance Tips and Tricks

Latest sailboat review.

Privacy Policy
Do Not Sell My Personal Information
Online Account Activation
Privacy Manager

Please verify you are a human

Access to this page has been denied because we believe you are using automation tools to browse the website.

This may happen as a result of the following:

Javascript is disabled or blocked by an extension (ad blockers for example)
Your browser does not support cookies

Please make sure that Javascript and cookies are enabled on your browser and that you are not blocking them from loading.

Reference ID: 9f46b7e9-5e9b-11ef-8cf1-324dbccfabb6

Forums New posts Unanswered threads Register Top Posts Email
What's new New posts New Posts (legacy) Latest activity New media
Media New media New comments
Boat Info Downloads Weekly Quiz Topic FAQ 10000boatnames.com
Classifieds Sell Your Boat Used Gear for Sale
Parts General Marine Parts Hunter Beneteau Catalina MacGregor Oday
Help Terms of Use Monday Mail Subscribe Monday Mail Unsubscribe

mast/steaming/anchor lights?

Thread starter Al
Start date Aug 6, 2002
Forums for All Owners
Ask All Sailors

Could someone set me straight regarding the differences between a steaming light, mast light, and anchor light (their intention, where they should be located, and when to use them)?

Stu Jackson

Lights Alsteaming light: about two thirds the way up the mast, faces forward (see reference books for coverage - 225 degrees?) used when motoring (NOT sailing) at night; use running lights all the time at night. When you're sailing (only under sail) at night, turn off the steaming light. Use only when the motor is on (even if you're motorsailing) at night.mast light: I assume you mean the "downlight" that is usually built into the steaming light, called combination steaming mast lights), only used to light up your foredeckanchor light: top of the mast, all around (360 degrees) fixture, for when you're anchored. Do not ever use when moving.

Robert Pugh

Mast and Anchor Lightss A steaming light is used when you are using your engine in the dark, fog, etc. It tells other boats that you are a "power" boat. An anchor light is only used when you are at anchor. It is the light at the top of your mast. The mast light, if I understand your term correctly, is used to illuminate the deck when you need to see there. The best way to understand these lights is to go out at night and try them.

Scott Blahnik

A bit complicated I went to the boatsmart course and initiated a big discussion about this. Seems even the instructors have some problems with it. I copied my conclusion from the archives:The (Coast Guard ) manual requiress white MASTHEAD LIGHTS on all vessels less than 20 meters, including powerboats. They are defined as "white lights that shine 225 degrees forward". (As opposed to ALL AROUND LIGHTS (360 degrees) SIDELIGHTS (red port, green starboard) and STERNLIGHTS (135 degrees aft).It does mention that on sailboats masthead lights "are seldom at the top of the mast, but partway down".So, it seems, by law, that we as sailors must have a white masthead light, but it cannot be used while under sail power.So, on my hunter, I have a RUNNING LIGHTS switch (which is SIDE and STERN lights)...I have STEAMING lights (which is the MASTHEAD light)...and an ANCHOR light, which must be the ALL AROUND LIGHT.While sailing at night, I will have only the RUNNING LIGHTS on, when I look up I will see no lights anywhere on the mast.Hope this helps !

Dennis Thomas

Reasons? Any power vessel under 20 meters must show a white light that is visible 360 degrees (all around). On a typical powerboat, this light is on a pole at the stern, (like on a bass boat) or perhaps on a mast on the cabin top. One of the purposes of the white light is to mark the stern of the boat relative to the sidelights near the bow. That way when you see the red light (or green) and the white light, you know which direction the boat is pointed. If the boat is large with structures on deck like a fly bridge that might block the light when viewed from forward, the light is sometimes split between a stern light and a forward facing light near the center of the boat (like on the mast of a sailboat). Sailboats under sail alone don’t show the forward facing part of the “all around” white light. So, if you see only red or green lights with no white you can be sure you’re seeing a sailboat headed toward you that is restricted in its’ ability to maneuver. This is a dangerous situation and you may need to make allowances for giving right of way. If you see either red or green with white, it’s a safer situation. You may be seeing a powerboat coming toward you or a sailboat moving away from you. As the sailboat is moving away, it posses no threat and the powerboat may need to give way to you.All vessels when anchored are to show an “all around” white light with no other colored lights. We sailors have the single light at the top of the mast for this. Powerboats have to have a separate switch for the red & green or set up a special anchor light.S/V Anodyne

Dennis, good reasons but what differentiates a sailboat under sail power only headed away from you from a power boat doing the same? Your answer implies that you keep an aft-facing white light on in this instance, and I'm not sure it's technically correct. What I get out of my research is that under sail alone, only the running lights are used. I would like to be sure, even though I like your logic, and practicality.

Wanderer138

If I may shed some light (no pun intended) As Dennis correctly pointed out, a side light (red or green) with a white light above means a vessel approaching under power and a single colored light means a vessel approaching under sail only. However, at any given time only ONE light should be visible on a vessel under sail because of the sectors that each light covers. When moving aft around a vessel under sail, the colored side running light should disappear just as the white stern light appears.For extra visibility and improved electrical efficiency at sea, some sailboats have a masthead tricolor lit by a single bulb. However since the steaming light must be above the running lights, the tricolor must be turned off when steaming and a second set of running lights near deck level has to be lit.PeterH23 "Raven"

Lights Peter and Dennis absolutely correct. Just goes to show how confusing such a 'simple' thing as turning your lights on can be!Scott...NOTHING different between a sailboat or a powerboat less than 50m seen moving away from you as long as you are in the 135deg arc immediately astern. As soon as you move ahead of this the sailboat would show only a single red or green light whereas the power boat would also show the white steaming light as Peter says at the higher level.

Thanks, I stand corrected My "running lights" include the stern light, so a white light will be visible from aft. I guess the part that gets me is that there is no light on the mast while under sail, unless you have that tricolor setup. It seems to defy logic to me, as you'd think to most easily identify a sailboat there would be a light somewhere high above, indicating a mast. Thanks for setting me straight fellows.

Thanks! I'm glad to see that it wasn't just me that feels confused about this. To summarize everyones comments/concensus:Running lights (red/green/aft white) ON all the time at night while moving.360 degree white light on top of mast ON only while motoring or anchored.225 degrees white light (pointing aft) on top of mast ON when sailing.Correct??

Not exactly Al, I would modify your statement as follows:Running lights (red/green/aft white) ON all the time at night while moving under sail or motor.360 degree white light on top of mast ON only while anchored at night.225 degrees white light (pointing foward) in middle of mast ON when motoring at night.

Night time... "Night time" is defined as "one half hour before sunset to one half hour after sunrise"Ligths should also be used during periods of restricted visibility (visibility less than 1 mile)Smooth sailing,~~ __/) ~~Marc

anchor light Good summary FredOK just to add a little more confusion...what would be wrong with using all round anchor light at masthead whilst motoring, together with red and green lights forward as long as aft white light can be independently switched off?Good to see the same confusions seem to occur both sides of the pond LOL and lets NOT get into buoyage hehe.

Lights Although it can be anywhere (acutally should be no more than 20 feet above the hull), the anchor light is usually at the masthead. The anchor light shows 360°. The anchor light is required when the boat is anchored at night in an area that is not designated as a special anchorage on the chart of the area. The steaming light is usually mounted on the front of the mast, and is used in conjunction with the red and green running lights when the vessel is operated under power (as opposed to using sail power only). The steaming light is supposed to show through a total of 20 points (10 points on each side of the bow). This equates to about 150° on each side of the bow.The mast light you refer to is often called a spreader light. This is used to illuminate the foredeck for handling anchors, sails, etc. at night.If you are going to operate at night, it is probably also a good idea to get to know the lights carried by tug boats, fishing vessels, and other commercial craft.Hope this helps.Vic

For Scott and Colin The masthead tricolor is designed to make a relatively slow sailboat as visible as possible to other traffic at night because running lights at deck level can be obscured in waves. I guess the single light convention is based in tradition, when running lights were lit by oil, and the fewer open flames on board a wooden boat, the better!!.Some masthead anchor lights are made in two sectors with two lamps, one facing forward and the other aft. The aft one is lit when sailing and both are lit when powering. When anchored, both remain lit but the red/green would be doused. I had a masthead light like this and I got rid of it right away! It was a lot of weight at the masthead and the power draw with both lamps lit was 20W. It's also a pain to bang on it to get it to work when the contacts become corroded. It's so much easier just to lean over the transom! The worst part was that one night at anchor would kill the battery, and on a hot Florida night, I'd rather have the power for my Hella fan and some music.My current anchor light is an LED light on a stick hoisted to the masthead with the main halyard. I know it's not USCG approved, but to my mind it beats an approved light that goes out at 2 am. I also keep a Dietz oil-fired hurricane lamp on board as a backup. The regs don't say it has to be electric...it just has to be visible at 2 nm. Happy sailing.PeterH23 "Raven"

Roger,Peter I just read in SAIL that those led's are coming a long way and will probably be the lights of the future. Adiing the masthead tricolors will have to go on the list, but only after an Autopilot, Dinghy, etc!

This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. By continuing to use this site, you are consenting to our use of cookies. Accept Learn more…

Gift Certificate
--> Login or Sign Up

Shop by Brand

MarineKinetix
Cruising Solutions
Sirius Signal
View all Brands
Navigation Lights

Smart LED Tri-Color, Anchor Light, and Strobe

Expected release: 20th Aug 2024

Create New Wish List

Product Videos

Similar Products

Product Description

This amazing 2-wire led lamp is a tri-color, 360 degree all-round anchor light, and sos strobe in a single compact fixture..

While this looks like an ordinary anchor light fixture, proprietary LED technology makes it function as a Tri-Mode fixture. Switching between an LED anchor light, an LED tri-color, and a high intensity emergency strobe light has never been easier with our simple 2-wire design. Circuitry based operation allows for all modes to work with your existing wiring and switch.

A built-in dusk to dawn photocell turns the anchor light on and off to conserve power (active only in anchor light mode).

Tri-colors are used for enhanced safety by greatly enhancing visibility of your boat when sailing offshore at night. The have Red and Green (port and starboard) 112.5° sectors facing forward, on the boats center-line, and a 135° white sector facing aft. Every offshore cruiser needs one, but many cruisers forgo installing one because of the expensive fixtures and the significant hassle of additional wiring up the mast, extra fuses, switches, and deck glands needed.

Operation:

Our LED Tri-Mode has all these features in one fixture thanks to its smart LED bulb with an on-board micro-processor. Memory functions allow for the bulb to detect on/off intervals as shown in the product video. Default is the photocell anchor light mode, followed by the Tri-Color mode. The S.O.S. strobe has an additional delay required between switching to prevent inadvertent activation.

Installation:

A flexible mounting arrangement allows it to be mounted on a pole (1/2" PVC pipe), or on a flat surface using the included spacer, stainless steel screws, and nylock nuts. See pictures.

The two wires going to your existing anchor light are all that is needed. Your anchor light switch will control the modes, so there are no more wires, switches or fuses to add!

This fixture exceeds all of the requirements under COLREG 72 for both All-Around Anchor and Tri-Color use on boats up to 20 Meters.

See an independent blog review here

2NM Visibility
12V/24V Operation (10-30VDC)
0.10A @ 12V - All-Around Anchor Light Mode
0.15A @ 12V - Tri-Color Mode
0.60A @ 12V (intermittent)- Strobe Mode
60mm x 90mm (2-3/8" x 3-9/16")
8" wiring pigtail, no polarity required
Mounts to flat surface, with 3 screws, or can be pole mounted. Pole mount allows extending the height with user supplied 1/2" PVC plumbing pipe and fittings.

Videos Hide Videos Show Videos

Convert your anchor light to a combination LED tri-color & anchor light

Our new patented LED bulb for sailboats considering adding a t...

Custom Field

Product reviews, write a review.

23 Reviews Hide Reviews Show Reviews

Smart tri-color anchor light.

Posted by John Bryant on 27th Oct 2023

I am very pleased with the light, I needed some help and the support from MarineBeam was very helpful and quick. It was easy to install, very bright, and draws very little power. I recommend the light and MarineBeam .

Customer Service

Posted by Christin Miller on 7th Jul 2023

Customer service was great. The guy on the phone answered all my questions and concerns. Product was shipped the next day. The tri light arrived in good condition.

Posted by Rick Zern on 27th Dec 2022

Works great

LED lighting refit

Posted by Keith D on 18th Oct 2022

Outstanding performance, design and value! I purchased this smart LED navigation light to replace multiple nav lights as part of our 2022 refit of a 2004 coastal cruiser. The lighting output is excellent and the smart 3-way toggling logic meant I could use the existing switches and simplify the wiring of our revamped masthead. Liked this product so much that I then bought various Marinebeam LED lights to replace all our interior ceiling halogen lights and exterior deckhouse lights. Highly recommend this company and products!

sku: TW-TRI-CMB

Led tri-color and anchor light combination bulb.

sku: N4-TRI-124

Led tri-color and all-around anchor navigation stack light.

LED All-Around Anchor Light with Photocell

sku: N1-360-CLR-DD

Led anchor light with photocell sensor.

sku: N1-360-CLR

Led all-around anchor light.

IMAGES

Ingenuity: a Makeshift Anchor Light
Boat Navigation Lights Rules: Illustrated Beginners Guide
Anchor lights test
Top 10 Best LED Boat Anchor Masthead Lights
Led Bi Color & All Round Anchor Light
Boat Navigation Lights Rules: Illustrated Beginners Guide

COMMENTS

Anchor Light Requirements
The Inland Rules have specific requirements as to anchor lights. That rule is quoted below, as is the USCG site reference. A 360-degree white all-around masthead light with two-mile visibility normally fulfills this requirement for most pleasure boats, but familiarize yourself with and follow the rule. Wire gauge, length of wiring, connections ...
Anchor lights test
Taking all the anchor lights out on the editor's boat late one June evening, we picked up a buoy in Calshot Bay and hung the lights in the foretriangle of the yacht, around 2.5m above deck level. At first we tried lighting five of them at once, to see if we could compare them together, but 150m away the light started to merge into one bright ...
Navigation Lights for Sailboats (And How To Read Them)
As such a power boat, and by extension all sailboats, MUST, without question show one green light on the starboard bow and one red light on the port bow and one all around white light or lights while operating in reduced visibility. These lights should shine at all 360 degrees of visibility with the bow lights shining at an angle of dead ahead ...
Know Which Navigation Lights are Required for Your Boat
The basic rule is that sidelights and a stern light are required. Permissible variations to this rule appear below. Sailboats less than 20m (65.7') can substitute a tricolor light for separate sidelights and stern light—or a bi-color light and a stern light may be substituted. Sailboats less than 7m (23') shall, if practicable, exhibit lights ...
Best Anchor Navigation Lights for Boats
Pedestal Mount LED All-Round Anchor Navigation Light. Pedestal Mount LED Anchor/Masthead 3NM Navigation Pole Light. Series 5500 Waketower LED All-Round Navigation Light. 2010 Fold-Down Anchor Light, 2 Nautical Miles Visibility. NaviLED 360 Pro LED All-Round Anchor Navigation Light, White Housing, 2 Nautical Miles Visibility.
Where should I put my anchor light?
In the Colregs, Rule 30 (b) simply states that for a vessel under 50m LOA 'an all-round white light should be placed where best seen'. Traditionally, this always meant hanging it in the foretriangle. An anchor light at the masthead was never a consideration until a couple of decades ago. Anyway, the purpose of the anchor light is not to ...
Understanding Boat Navigation Lights
Powered vessels and sailing vessels at anchor must display anchor lights. An anchor light for a boat less than 50 meters in length is an all-around white light visible for 2 miles exhibited where it can best be seen (see Figure 7). Figure 8.
How to Add an Anchor Light For Less
I drilled a 1/2″ hole in the bottom of the mast on the port side above the step and installed a rubber grommet. I ran the lower end through the grommet, slipped a piece of braided flex loom over the end to dress it up and connected the conductors to the male end of the deck connector. Anchor light deck connection.
Extra Anchor Lighting
Even sailboat lights with the broader beam angle dim when you get within a few boat lengths. Additionally, this means that anchor lights that meet only part (a) vertical sector (5 degrees) must be mounted within a few degrees of plumb to avoid black-out zones. Even sailboat lights meeting part (b) appear dim when rigged out of plumb. EMERGENCY ...
Anchor lights: are you sure you'll be seen?
COLREGS ANNEX 1. Rule 30. (a) A vessel at anchor shall exhibit where it can best be seen: (i) in the fore part, an all-round white light or one ball; (ii) at or near the stern and at a lower level than the light prescribed in subparagraph (i) an all-round white light. (b) A vessel of less than 50 metres in length may exhibit an all-round white ...
The Purpose of Boat Anchor Lights
This means that the key to placing an anchor light is to put it where it is visible for 360 degrees. Anchor lights must be placed higher than any other navigational lights, which is the reason that many are placed on a steel pole. Vessels under 50 meters must display one white all-around anchor light on the highest point of the boat, which must ...
What is an Anchor Light? A Clear Explanation
An anchor light is a type of light that is used to signal the location of a vessel at anchor. It is typically a white light that is mounted at the top of the vessel's mast. The purpose of the anchor light is to make the vessel visible to other vessels in the vicinity, especially at night. The anchor light is required by law when a vessel is at ...
Practical Sailor Tracks Down the Best LED Tri-color Light
The test field included three LED lanterns and three LED bulbs. From Orca Green Marine (OGM), maker of the top choice among tri-colors in the 2005 Practical Sailor test, we reviewed the latest USCG 2-nautical-mile approved tri-color. The other tested lanterns were self-contained tri-color/anchor light combos from Signal Mate and Lopolight.
Top Port & Starboard Navigation Lights
LightArmor™ Deck Mount 2NM LED Starboard Navigation Light. Vertical Mount Fold-Down Masthead/All-Round Navigation Light. Articulating LED All-Round Navigation Pole Light 24", 2 Nautical Miles Visibility. Rub Rail Mounted LED Navigation Light Set, 3 3/8", without plug. Nothing beats a day on the water but a pleasant night cruise is a close ...
mast/steaming/anchor lights?
The anchor light is required when the boat is anchored at night in an area that is not designated as a special anchorage on the chart of the area. The steaming light is usually mounted on the front of the mast, and is used in conjunction with the red and green running lights when the vessel is operated under power (as opposed to using sail ...
IP67 USCG Certified 3NM LED Anchor Navigation Light
Includes three (3) stainless steel mounting screws, and 8' of duplex 18AWG tinned wiring to allow power connection to be made within the mast or below decks, if desirable. Specifications: Voltage: 9-33VDC. Power: 1 Watt (0.09A at 12V) Visibility: 3NM. Housing Color: Black. Output Color: Cool White (6,500K) Ingress Protection: IP67 (fully sealed)
Where is the Anchor light on a sailboat
An anchor light just has to be a visible all around white light. On a sailboat, they are typically at the masthead. In the past, they were simply kerosene lamps hung in the rigging. The mast light breaker would normally supply downward-facing lights on the underside of the lower spreaders, or some other location in the mast where they can ...
LED Anchor Light with Photocell Sensor
IP67 USCG Certified 3NM Waterproof LED Anchor Navigation Light with Photocell. Toggle menu (843) 885-8644 ... This light is a perfect solution for our boat's electrical system. Our boat uses lithium rechargeables, so its voltage is unusual at about 28.4 volts DC. This light runs flawlessly on 12 volts, 24 volts, and our system at 28.4.
LED All-Around Anchor Light for Boats
An economical 2NM LED All-Around Anchor Light fixture navigation light intended to be mounted on the top of the mast on larger sailboats. It replaces the Aqua Signal Series 40 type anchor lights, as it is of similar size and height. Prefitted with a user-replaceable Marinebeam constant-current 10-30VDC BAY15d high-output LED bulb and 8" of ...
Smart LED Tri-Color, Anchor Light, and Strobe
Smart Switching LED Tri-Color / Anchor / SOS Strobe Light, aqua signal, sailboat, hella, mast, perko. Toggle menu (843) 885-8644 Gift Certificate; ... THIS AMAZING 2-WIRE LED LAMP IS A TRI-COLOR, 360 DEGREE ALL-ROUND ANCHOR LIGHT, AND SOS STROBE IN A SINGLE COMPACT FIXTURE.
Amazon.com: Boat Anchor Lights
12 Inches Anchor Light Boat Stern Light Waterproof IP67, White Fold Down Marine Navigation Lights for Boats LED for Pontoon, Jon Boat and Bass Boat (12-24V) 4.6 out of 5 stars. 150. 1K+ bought in past month. $15.99 $ 15. 99. Typical: $17.99 $17.99. FREE delivery Wed, Aug 7 on $35 of items shipped by Amazon.