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”.
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
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.
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.
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Here is a question from a Student who posted it on Disqus. I felt it was important enough to post out here for public. Displaying correct lights on boats is important.
Could you please provide more of an explanation for the following: Although ‘steaming light’ is used extensively, this does not have a definition within the IRPCS [International Regulations for Prevention of Collisions at Sea], the correct definition being a masthead light.
If the tri-colour light can replace the stern and red/green pulpit light on a sailboat how can it be unacceptable to use the tri-colour light with mast head light? If you are under power you of course need your steaming light/ mast head light illuminated. So if you don’t have pulpit or stern lights aboard as you are using a tri colour light how can you do this?
Agreed – lights can be confusing at the onset. In this particular topic, sailors tend to get confused because they think a mast is only on a sailboat. But, a mast head light is also used (and defined for use) on power boats. Take a look at this image shown in the rules. It shows a power driven vessel longer than 50 meters using two mast head lights.
A large Power vessel displaying two mast head lights.
Here is the definition of a mast head light in the rules:
(a) “Masthead light” means a white light placed over the fore and aft centerline of the vessel showing an unbroken light over an arc of the horizon of 225 degrees and so fixed as to show the light from right ahead to 22.5 degrees abaft the beam on either side of the vessel.
Note also that is does not say the light must be at the top of the mast.
For sailboats, a tricolored light is a light described by rule 25(b) in USCG Nav Rules. It is at or near the top of the mast and is for sailing vessels less than 20 meters in length. It is an optional alternative to having the lights down on the hull or pulpits. It faces a white light to the aft 135 degrees plus red from directly forward around to port 112.5 degrees and a green light directly forward and around to starboard 112.5 degrees. This makes up 360 degrees and meets the requirement for a sailboat sailing. When the sailboat turns on it’s engines it must also in addition to the white, red and green above, display a white light 225 degrees facing forward. You can name this light what ever you like but it must exist. These white “mast head” lights are also defined by the distance they must be seen by – it does not mean they have to be at the top of the mast. On power vessels they are typically at the top of the mast because that is what the mast is for.
Here is a sailing vessel under sail only with a tricolored light
Tri-colored lights on a sailboat
On a sailboat less than 50 meters in length, a mast head light (white under power light) can be just “up the mast” anywhere. It’s not part of the tri color. It is white and faces forward 225 degrees and is to be used when the sailboat is under power. You also might be confusing the term mast head light with the two all around red and green lights at the top of the mast. These are not mast head lights. They can be used in addition to the hull or pulpit mounted red green and white. The rules prevent a top of the mast tricolored light AND the two all around red and green at the top of the mast. This would create confusion and may be your source of confusion. i.e it is unacceptable to use the tricolored and two all around red and green lights. Again the mast head is white 225 deg forward facing to be used under power only.
Here is a vessel with the two all around red and green lights.
The Vessel sailing “on starboard” is utilizing the optional two all around red and green lights.
Here are the rules as stated: Rule 25 – Sailing Vessels Underway and Vessels Under Oars
(a) A sailing vessel underway shall exhibit:
(i) sidelights; (ii) a stern light
(b) In a sailing vessel of less than 20 meters in length, the lights prescribed in Rule 25(a) may be combined in one lantern carried at or near the top of the mast where it can best be seen. [note this is the tricolored light]
(c) A sailing vessel underway may, in addition to the lights prescribed in Rule 25(a), exhibit at or near the top of the mast, where they can best be seen, two all-round lights in a vertical line, the upper being red and the lower green, but these lights shall not be exhibited in conjunction with the combined lantern permitted by Rule 25(b).
I hope that helps.
I highly recommend that you complete our Navigation Rules Course . It is free for everyone.
International Rules for Prevention of Collision at Sea FREE Sailing Course
We also have a Paper Book that you should order and keep on your boat for reference.
The book is a stand alone excellent explanation of the Rules of the Nautical road and is a good and quick easy read. It has additional really cool features. Through out the book you will see QR Codes. When you scan any QR code with your mobile device, the book element comes alive and shows you animations and videos.
To get a QR Reader –
For Android
Order the International Rules of Prevention of Collision at Sea Book from Amazon.
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Port, Starboard, Stern, Anchor, Tricolour, Bicolour, Masthead. We have all the navigation lights you need, many in LED as well as traditional halogen.
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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 marine tinned wire - ready to mount. The wiring connection can be made inside the fixture via the internal spade terminal connections, or by connecting to the included external wire pigtails.
The height is 4-3/8" and the base diameter is 3". Mounted with 4 screws or bolts (not included) to any flat surface.
You won't find a brighter LED fixture with a longer life for this price.
Made of UV resistant plastic with brass internals. O-ring sealed cover.
Custom field, product reviews, write a review.
Posted by Molly Mullins on 14th Sep 2023
Works well, easy installation.
Led all-around anchor light, sku: n2-360-fld, folding all-round anchor light for boats < 20m.
Led tri-color and all-around anchor navigation stack light.
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4 year home improvement protection plan, asurion complete protect: one plan covers all eligible past and future purchases on amazon, save with used - like new #buybox .a-accordion .a-accordion-active .a-price[data-a-size=l].reinventpriceaccordiont2 .a-price-whole { font-size: 28px important; } #buybox .a-accordion .a-accordion-active .a-price[data-a-size=l].reinventpriceaccordiont2 .a-price-fraction, #buybox .a-accordion .a-accordion-active .a-price[data-a-size=l].reinventpriceaccordiont2 .a-price-symbol { top: -0.75em; font-size: 13px; } $44.57 $ 44 . 57 free delivery sunday, september 15 ships from: amazon sold by: amazon resale.
Color | White |
Material | Polyamide+Polycarbonate |
Light Source Type | LED |
Shade Material | Polycarbonate (PC) |
Power Source | Corded Electric |
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Customer Reviews | ||||||
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Price | $41.99$41.99 | $60.99$60.99 | $47.48$47.48 | $69.99$69.99 | $53.99$53.99 | $46.99$46.99 |
Base Style | Removable or plug in base | Stainless steel Cover with straight base | Removable or plug in base | With threaded base | Stainless steel Cover with straight base | with adjustable base |
Product Length | 12 inches | 36 inches | 24 inches | 36 inches | 22 inches | 16 inches |
Light Color | red and green | all round white | all round white | all round white | all round white | all round white |
Technical details.
Color | White |
---|---|
Material | Polyamide+Polycarbonate |
Light Source Type | LED |
Shade Material | Polycarbonate (PC) |
Power Source | Corded Electric |
Brand | Besramtic |
Item Weight | 0.5 Pounds |
Style | Modern |
Voltage | 12 Volts (DC) |
Mounting Type | Pole Mount |
Number of Light Sources | 18 |
Are Batteries Included | No |
Manufacturer | Besramtic |
Item Weight | 8 ounces |
Product Dimensions | 7.5 x 3 x 6.3 inches |
Country of Origin | China |
Manufacturer Part Number | 00100-LD |
Position | Front |
Special Features | Waterproof |
Wattage | 5 watts |
ASIN | B09S6NTJRK |
---|---|
Customer Reviews | 4.4 out of 5 stars |
Best Sellers Rank | #252,191 in Sports & Outdoors ( ) #384 in |
Date First Available | February 10, 2022 |
Customer reviews.
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
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COMMENTS
Learn how to choose the right navigation lights for your boat based on vessel size, power status and visibility range. A powerboat operating at night must show red and green sidelights, a white stern light and a white masthead light.
Learn the rules and reasons for sailboat navigation lights, including the red over green light configuration for sailing under sail alone. Find out when and how to use the all around white light, the steaming light and the anchor light.
Learn the basic rules and regulations for boat navigation lights, including when to display red and green sidelights, white stern light, and masthead light. Find out how to identify other boats at night and avoid collisions in the dark.
Learn everything you need to know about boat navigation lights, including the legal requirements, types, colors, and positions of lights for different vessels and situations. Find out how to use boat lights to communicate with other boaters and avoid collisions at night or in reduced visibility.
Compare six LED lights for under-sail navigation, including lanterns and bulbs, based on brightness, energy consumption, and durability. Find out which LED tri-color light is the best for your boat and budget.
Learn the legal requirements and characteristics of navigation lights for powerboats, sailing vessels, and diving vessels. Nav lights are used to prevent collisions at night or in reduced visibility, and provide information about the size, activity, and direction of other vessels.
Learn the rules and regulations of marine navigation lighting, the colors, positions and ranges of boat navigation lights, and the different types of lights for different situations. See diagrams and examples of boat navigation light systems and how to use them.
The tri-color light at the top of the mast faces a white light to the aft 135 degrees plus red from directly forward around to port 112.5 degrees and a green light directly forward and around to starboard 112.5 degrees. This makes up 360 degrees and meets the requirement for a sailboat sailing. Options. So, when the sailboat turns on its ...
3562 Side Mount Masthead/Deck Navigation Light, 2 Nautical Miles Visibility. NaviLED PRO Masthead LED Navigation Lamp, 3 Nautical Miles Visibility. 2984 Side Mount Masthead Navigation Light, 3 Nautical Miles Visibility. OGM Series Q Collection Mast Mount LED Steaming/Masthead Navigation Light.
Learn how to use and install boat navigation lights according to the U.S. Coast Guard Navigation Rules, International-Inland. See diagrams and examples of different types of lights, shapes and colors for powerboats, sailing vessels, anchored vessels and more.
Learn the difference between mast head light and tricolored light on sailboats and power boats according to the International Regulations for Prevention of Collisions at Sea. See examples, definitions and diagrams of various lights and their positions.
Sailboat how-to video brought to you by sv Zingaro! In this episode I take you through everything I did to install a new tri-color masthead light. This one i...
Lalizas Flexy Emergency Navigation Lights. £ 12.32 £ 11.95. AAA All-Round LED Tricolour Pole Light. £ 27.95. Navigation Light Classic N12. £ 7.95 - £ 9.95. Nasa Supernova LED All round White. £ 65.03 £ 64.95. Talamex All Round Nav Light With Bracket - Battery Powered.
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.
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 ...
4-5/16" L Polycarbonate 2 Nautical Miles Fixed Moun Masthead LED Light by Sea Dog®. This LED 225° Masthead Light is fixed mounted and approved for USCG 2 NM (Colreg 2 mile). Constructed of UV stabilized injection molded polycarbonate.... $58.54. Clear All. Whether you use your craft for water sports, fishing, or leisure cruising, it should be ...
The masthead light is used for power, sailboats and commercial vessels up to 20 meters (65') while being propelled by machinery. Small but robust, the 3NM Masthead LED Light includes a wraparound mast mount and latest technology high-brightness (HB) lens. Constant brightness over the full operating range of 10V to 30V DC ensures the light will ...
HIGH-PERFORMANCE LED: Masthead Light - Feature 14 Super Bright White LEDs. Deck Light - Feature a Super Bright MR16-12 LED G4 type. Working Voltage: 12V DC. Wattage: 0.5W Masthead Light, 1.5W Deck Light. Amperage Draw: 0.25A. LED Lifetime: 100,000 hours ; DURABLE MARINE GRADE MATERIALS: Design of Solid Marine Grade Polycarbonate Housing and Lens.
Amazon.com: led mast light. ... Boat Light Bulbs for Boat Anchor Light, Boat Navigation Lights, Mast Masthead Light, Super Bright 12 Volt Bulbs for Boat Lights 2PCS. 4.6 out of 5 stars. 1,224. 200+ bought in past month. $9.99 $ 9. 99. FREE delivery Wed, Apr 10 on $35 of items shipped by Amazon.
Masthead and Deck Light LED for Sailboat. 4.3 out of 5 stars. 32. $49.99 $ 49. 99. FREE delivery Tue, Aug 6 . Add to cart-Remove. ... Young Marine 9 inch 3 Nautical Mile White LED Fold Down Boat Stern Light Boat Anchor Light for Pontoon and Fishing Boat Navigation Anchor Lights All Round 360° White LED 12-24V. 4.6 out of 5 stars. 1,402.
Acouto Navigation Signal Light Marine Navigation Light Boat Mast Lamp 12V/24V 135 Degrees Boat Signal Light 3W IP66 LED Navigation Mast Lamp for Yacht Fishing Boat Cruises. $13.10 $ 13. 10. FREE delivery Tue, Jan 9 on $35 of items shipped by Amazon. Only 3 left in stock - order soon.
Find LED navigation lights for your boat or kayak that meet Coast Guard requirements and provide visibility at night. Shop deck mount, portable, telescoping, fold-down and all-round lights with different visibility ranges and mounting options.
This item: Besramtic Masthead and Deck Light LED for Sailboat. $4999. Young Marine 3 Nautical Mile Boat All Around LED Anchor 360 Degree Navigation Light, 10-24 VDC. $1577. Pactrade Marine Boat Pontoon LED Navigation Light Black ABS Plastic Housing Boats Up to 12M Waterproof IP:66 Surface Mount 2NM (Stern) $1699. Total price: