1157 / BAY15D Navigation BulbThis LED bulb is designed to replace the incandescent bulb in your dual contact offset pin navigation, anchor, steaming, and mast light fixtures. Created from 60 high-brightness 2835 SMDs which generates EXREMELY BRIGHT light.
• Base: 1157 / BAY15D – Dual Contact Staggered Pin
• LEDs: 60-2835s (High Brightness) 12 on EACH Color
• Volts: 10-30
• Amps: .34
• Lumens: 850+
• Color: 3200K-Warm White or 5500K-Day White
• Dimensions: 35mm in diameter, 48mm Long – The same size as the bulb you are replacing.
Colors are for comparison only. Colors will vary with different monitors and settings.
THIS DOES NOT REPRESENT BRIGHTNESS.
Choose your preferred color temperature from the “Choose an Option” drop-down menu above.
Light is dispersed in a 360° pattern with 5 12 LED panels.
Joe’s Tip:
This bulb is a perfect replacement for the AQUA SIGNAL Series 40, 50 & 55 as well as other nav and anchor lights. The 5500K is best for clear lenses and the 3200 is best for colored lenses.
The diagram below illustrates the way this bulb is designed. The sleeve with the offset pins does not conduct any electricity. Each contact on the bottom provides the + or – power to the bulb allowing your fixture socket to be wired without regard to polarity.
37mm Festoon
Bulb pictures are not to scale. 
43mm Festoon
Bulb pictures are not to scale. 
JC10 or JC20 Halogen Bulb. VERY HOT. Draws 2 Amps
G4 - Bi-Pin, 9-2835 LEDs, 10-30 volts - .1amps, 540 Lumens, 3200K-Warm White, 4100K-Neutral White or 5500K-Day White.
Michael Given (verified owner) –
I guess I had a unusual situation concerning all the navigation fixtures on my boat. I could not find an LED bulb anywhere that would work, with dual contacts, one contact (+) / one contact (-) but OFFSET PINS! Luckily I found Cabin Bright. Bulbs are super bright and work like a champ. I’m ordering more for the other fixtures I have, the new bulbs are so bright!!
Michael Given (verified owner) –
These new bulbs are exactly what I needed. Nice and bright and suit the existing fixtures perfectly! Had a hard time finding LED bulbs with dual contacts, offset pins where the dual contacts are +/- as one would expect from dual contacts but try finding them elsewhere. Great service too.