Aqua Signal P28s Bulb 24V 40W - 90171

24V / 40W. Base Type P28s. Double Contact Bayonet Base Offset Pins. Bulb Length 4", Bulb Diameter 1 1/2". For Aqua Signal Navigation Light Series 70, 70D.

Bulbs for Navigation Lights

Navigation lights are certified as a housing/lens/bulb combination. The USCG only approves through third party testing, entire fixtures including the bulb. Change to any of those components with a part that is not original and the light is no longer certified. The bulbs that are offered are the direct replacements of Aqua Signal incandescent bulbs certified with the light.