LED Replacement Bulbs

Replacing incandescent and halogen bulbs with LEDs cuts lighting loads on your battery bank and reduces heat in the cabin. This collection includes Marinebeam LED bulbs in G4 side-pin and back-pin, BA15d and BA15s bayonet, BA9s, 42mm festoon, MR11 and MR16 bases, in warm white, cool white, red, blue and green, plus base adapters (bayonet, screw and Edison to G4), Hella chart lamps, LED stern running lights, and OGM brackets for tricolor and anchor lights.

How to choose an LED replacement bulb

• Base: identify the base on the old bulb (G4, BA15d, BA15s, BA9s, festoon or MR16).
• Fit: measure the fixture; tower and cluster LEDs need more room than small capsules.
• Color: warm white for living spaces, cool white for tasks, red for night vision.
• Navigation lights: nav lights must meet visibility rules; use LED fixtures or bulbs approved for that use.

What is the difference between BA15d and BA15s?

Both are 15mm bayonet bases: BA15d has two contacts on the base, BA15s has one.

Can I convert a fixture to G4 LEDs?

Yes. Base adapters convert bayonet, screw and Edison sockets to G4. See Marinebeam for the full range, or the lighting section.

Do LED bulbs work on 24V boats?

Many Marinebeam LEDs list a wide input range; check each listing for 12V and 24V compatibility.