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1977 F30 Express AC light bulbs issue with LED's
Posted: Tue Aug 02, 2016 5:45 pm
by Svend
Here is a strange one!!
Up in the forward birth is 2 lightbulb sockets.
One has an old incandescent build which works. I wanted to put in LED bulbs
When I do, they do not work...
Seems very odd to me!

Re: 1977 F30 Express AC light bulbs issue with LED's
Posted: Tue Aug 02, 2016 7:57 pm
by prowlersfish
I believe they maybe 12 volt check the voltage . If the voltage matches try reversing the leads . LEDs have to be wire right even some AC ones .
Re: 1977 F30 Express AC light bulbs issue with LED's
Posted: Tue Aug 02, 2016 9:07 pm
by Svend
Interesting... I just assumed they were 120V AC... they look like big standard light bulbs..
I guess if i turn of AC panel, they will go out if 120V
thanks!
Re: 1977 F30 Express AC light bulbs issue with LED's
Posted: Wed Aug 03, 2016 6:44 am
by prowlersfish
My F30 had both AC and 12 volt fixtures . I don't remember what was were but they looked the same .
Re: 1977 F30 Express AC light bulbs issue with LED's
Posted: Wed Aug 03, 2016 11:31 am
by The Dog House
All of the lightbulbs on my F26 are 12V DC. Some are big and look like 110V AC lightbulbs, but they are not.
Re: 1977 F30 Express AC light bulbs issue with LED's
Posted: Thu Aug 04, 2016 8:48 am
by Svend
thanks for the input all!
those large bulbs are 12V
I have never seen 12V bulbs that look big like a normal light bulb!
I will have to search these out
thanks again for all input !
Re: 1977 F30 Express AC light bulbs issue with LED's
Posted: Thu Aug 04, 2016 10:11 am
by Flyboy
any rv store will have them
Re: 1977 F30 Express AC light bulbs issue with LED's
Posted: Thu Aug 04, 2016 10:31 am
by Svend
thanks for the tip!