What LED bulb

Jun 20, 2021
51
Catalina '83 30 SR Universal 5411 Arkansas River
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Stern light 1983 Catalina 30. I can’t read the writing on the bulb. Thanks
 
Mar 20, 2015
3,199
C&C 30 Mk1 Winnipeg
FWIW: You can get a marine grade LED bulb including a bicolour red/green for the aqua signal series 25.

To get the correct 2 colours you need an led that uses 2 different colours of LED, unlike the original incandescent white.
That is because the spectrum produced by a white LED won't pass well through the red/green lens.

Of course they also make them in single color with a better output for stern lights, nevermind the lower power consumption.

Last time I checked SBO has both.
 
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Nov 6, 2006
10,048
Hunter 34 Mandeville Louisiana
This in warm white will work in the bi-color on the bow and in the stern white series 25. There is some controversy about the bulb not having been certified by the CG in that fixture. I replaced my series 25 bulbs with LEDs several years ago and I don't see any problems with brightness, lens color representation, or angle of light colors. The LED that i used is very similar but not from this supplier; it is brighter than the original and I believe that it would meet the USCG requirements. remember, it must be in "Warm White"
Navigation Bulb for Aqua Signal 25 - Barrel End Festoon -WW (marineledshop.com)
 
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Jul 12, 2011
1,165
Leopard 40 Jupiter, Florida
Looks like a festoon bulb, with a dimple end. Need to measure end-to-end. Replace with a good quality LED to cut the power usage by 95% and increase brightness 2x - it will also outlast your boat. Remember on your LED's to buy good quality so they do not overheat or emit FM noise to disturb your VHF. Here's a good source from Marinebeam, but others sell these: 31mm, 37mm, 42mm, and 44mm LED Festoon Bulbs | SV8.5
 
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Mar 20, 2015
3,199
C&C 30 Mk1 Winnipeg
SBO now has a nice list for matching bulbs.. just need the length of that "festoon" bulb you have there and you are golden.

Of course you can contact SBO store and they can figure it out and you get to make new friends...,

FWIW they appear to sell the same LEDs that marine beam and dr led do. So SBO for the win. :beer:


Edit:don't get the cheap Chinese crap. I learned the hard way with mast lights.

The only place I still use the cheapos is cabin lights and once i run out of the bag of them I am buying a better brand.
 
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