G4 LED Bi Pin Halogen Bulbs - e Marine Systems

G4 LED Bi Pin Halogen Bulbs are one of the most common bulbs found within interior lamps on boats. G4's are identified by the two small pins, 4mm apart, extending from a small glass capsule.

G4 LED Halogen Bulbs found on boats typically range from 5W to 15W. If you have a 20W halogen bulb on your boat it will get extremely hot and could be a fire hazard. Bulbs brighter than 20W are not G4's.

Care must be taken when selecting a G4 LED replacement for your boat. Most G4 LED Bi Pin Halogen Bulbs used on boats are ceiling mounted and use a G4 bulb that is horizontal, or parallel to the fixture.

However, some bulkhead mounted "eyeball" lamps and bell-shaped reading lamps use a vertical bulb, where the bulb is perpendicular to the base of the fixture. Our Side-Pin (SP) type G4 LED bulbs replace the horizontal type, while our Back-Pin (BP) type G4's, or our MR11 LEDs, replace the vertical type.