MarineBeam
Smart Tri-Color & Anchor Light LED Bulb
Smart Tri-Color & Anchor Light LED Bulb
SKU:TW-1157-TRI-CMB
Marine LED navigation lighting. Confirm the light function, visibility sector, system voltage, and mounting geometry in the specifications below.
See fit checks and full product specificationsCouldn't load pickup availability
- Ships in 1–5 business days
- 30-day returns
- Advice from real cruisers
Turn your normal anchor light fixture into a masthead tri-color and anchor light combo! Just change out your existing bulb with our smart tri-color bulb.
This is a patented LED bulb that replaces your existing all-around BAY15d or BA15s bayonet-type anchor light bulb, and turns it into a dual-mode Anchor Light/Tri-Color Light – without changing fixtures or adding switches or wiring.
The bulb itself meets the requirement for both an all-around anchor light, and a tri-color navigation light. So, it can be installed in virtually any clear anchor light fixture (using BAY15d or BA15s type bulbs) and it will meet the USCG and COLREG requirements for boats up to 20M.
You simply replace your existing anchor light bulb with the Tri-Mode LED bulb, and you instantly have 3 functions. LED anchor light, LED Tri-color light, and emergency SOS strobe.
The anchor light also has Dusk-to-Dawn functionality, so there is no need to remember to turn the anchor light on or off when mooring. If you don't want this function, it is easy disabled.
How does it work?
By varying the timing of the ON/OFF sequence of the switch, the bulb’s integrated micro-processor recognizes your request and changes to the correct mode. When you first actuate your switch, it will turn on the default dusk-to-dawn anchor light function. If you turn off the switch, then turn it on again within 3 seconds, you activate the tri-color mode. If you turn off the switch and wait from between 3 and 7 seconds, you will activate the SOS strobe mode. If you turn the lamp off, and then wait more than 7 seconds, the next time it is turned on it will revert to the default anchor light mode.
The bulb also has a unique rotating feature, which allows the tri-color bulb to be easily aligned with the boat’s center line, regardless of the socket or fixture alignment.
The engineering that went in this bulb is incredible. It meets all the COLREG regulations for both an anchor light and a tri-color as a standalone bulb, including separation angle, color, and range, yet uses about a 20 times less energy to operate than a standalone tri-color.
Shipping & lead times
Shipping & lead times
We're a small team of boaters and we pack orders within 1–5 business days (no weekend or holiday packing). You'll get an email with tracking as soon as a label goes on your box.
Specialty items — fire extinguishers (dangerous goods) and low-stock or built-to-order gear — can take longer; the product description will say so. On a tight timeline or meeting your boat somewhere specific? Contact us and we’ll work out the fastest way to get gear to you.
International orders ship DDU: local duties, taxes, and customs fees are the buyer’s responsibility. Full details in our shipping policy.
Returns & refunds
Returns & refunds
30-day returns from the date of purchase. Items must be unused, in the original packaging with all cables and accessories, with proof of purchase.
Contact us before shipping anything back — we’ll send the return form that must accompany your return. Fire extinguisher and lithium battery items carry a $15 administrative fee on returns.
Read the full refund policy.
Ask a cruiser before you buy
Ask a cruiser before you buy
Everyone here is a current or past cruiser — we’ve docked short-handed, re-rigged at anchor, and chased 12V gremlins too. Not sure this is the right fit for your boat? Send us your question before you order and we’ll give you a straight answer.
Check fit before ordering
- Function and sector: match the required anchor, steaming, stern, port/starboard, bi-color, or tri-color function.
- Required performance: confirm the certification and visibility distance required for your vessel; brightness alone does not establish compliance.
- Physical fit: compare the mounting footprint, fastener pattern, lens orientation, and available clearance.
- Electrical fit: verify DC voltage, wiring, polarity, switching, and any photocell or multi-mode behavior.
Product specifications and details
Turn your normal anchor light fixture into a masthead tri-color and anchor light combo! Just change out your existing bulb with our smart tri-color bulb.
This is a patented LED bulb that replaces your existing all-around BAY15d or BA15s bayonet-type anchor light bulb, and turns it into a dual-mode Anchor Light/Tri-Color Light – without changing fixtures or adding switches or wiring.
The bulb itself meets the requirement for both an all-around anchor light, and a tri-color navigation light. So, it can be installed in virtually any clear anchor light fixture (using BAY15d or BA15s type bulbs) and it will meet the USCG and COLREG requirements for boats up to 20M.
You simply replace your existing anchor light bulb with the Tri-Mode LED bulb, and you instantly have 3 functions. LED anchor light, LED Tri-color light, and emergency SOS strobe.
The anchor light also has Dusk-to-Dawn functionality, so there is no need to remember to turn the anchor light on or off when mooring. If you don't want this function, it is easy disabled.
How does it work?
By varying the timing of the ON/OFF sequence of the switch, the bulb’s integrated micro-processor recognizes your request and changes to the correct mode. When you first actuate your switch, it will turn on the default dusk-to-dawn anchor light function. If you turn off the switch, then turn it on again within 3 seconds, you activate the tri-color mode. If you turn off the switch and wait from between 3 and 7 seconds, you will activate the SOS strobe mode. If you turn the lamp off, and then wait more than 7 seconds, the next time it is turned on it will revert to the default anchor light mode.
The bulb also has a unique rotating feature, which allows the tri-color bulb to be easily aligned with the boat’s center line, regardless of the socket or fixture alignment.
The engineering that went in this bulb is incredible. It meets all the COLREG regulations for both an anchor light and a tri-color as a standalone bulb, including separation angle, color, and range, yet uses about a 20 times less energy to operate than a standalone tri-color.