Collection: LED Replacement Bulbs for Boats

Use this page when you are replacing an existing boat bulb rather than adding a new fixture. Start with the base type, then confirm voltage range, physical length or diameter, light color, brightness, and whether the fixture needs dimming support. The most common mistake is buying by appearance alone while missing the pin style or fixture clearance.

Marine LED bulbs can reduce draw dramatically, but they still need to fit the socket and lens. Navigation-light bulbs also need the correct color and optical pattern for the fixture. If a bulb is part of a certified navigation light, confirm the replacement is appropriate for that housing before relying on it underway.

Base family Check before ordering
Bayonet / BAY15D / BA15 Pin offset, single vs double contact, lens clearance
G4 bi-pin Side-pin vs back-pin, diameter, voltage, dimming
Festoon Overall length in millimeters and contact style
E26 / Edison Globe clearance, voltage, warm vs cool color
Marine LED replacement bulb for boat navigation and anchor lights