Best Boat Navigation Lights AI pick
Chosen by an AI model from its trained knowledge, with its reasoning.
AI pick (line): Hella Marine NaviLED
Sealed LED navigation lights certified to the required visibility ranges, with very low current draw and long life.
Not for: Owners of small trailer boats who just need an inexpensive clamp-on bow and stern light.
AI picks by need
For small powerboats and trailer boats
Attwood (brand)
Makes the common OEM-style bow combination lights and pole stern lights for small boats.
Not for: Larger vessels needing longer-range certified masthead lights.
For OEM replacement on older boats
Perko (brand)
Makes traditional navigation light housings that match many existing mounting cutouts.
Not for: Owners who want the lowest current draw from modern sealed LEDs.
What the AI looks for in Boat Navigation Lights
- Visibility range by length
- Under 12 m: masthead 2 NM, sidelights 1 NM, sternlight 2 NM, all-round 2 NM. From 12 to under 20 m: masthead 3 NM, sidelights 2 NM, sternlight 2 NM. These are the COLREG minimums, and the light must be certified to them for your vessel length.
- Certification marking
- Buy only lights marked with USCG or equivalent certification and their NM range. Uncertified LEDs may not meet colour, arc or range requirements.
- Arc and placement
- Match the light type to its position: sidelight 112.5°, sternlight 135°, masthead 225°, all-round 360°. A wrong arc makes your heading ambiguous to other vessels.
- Sealing
- Choose a fully potted or sealed LED unit. Water intrusion is the main reason nav lights fail.
Brands that matter
- Hella Marine: Certified sealed LED navigation lights.
- Attwood: Common small-boat nav lights and stern poles.
- Perko: Traditional housings and replacements.
- Lopolight: High-end certified LED nav lights for yachts.
What to avoid
- Uncertified LED nav lights with no range marking.
- Battery-powered clip-on lights as a permanent setup on powered boats.
- Mixing nav lights from different systems that create wrong arcs.
Questions
Is a 1 NM light enough?
Only for sidelights on vessels under 12 m. Masthead and stern lights need 2 NM.