The usuall reason that an LED won't light when it's known to be good is
that the polarity is reversed. Check the ploarity of the voltage on the
socket that doesn't work, and compare it to the one that does,
bschwart@postoffice.pacbell.net wrote:
>I bought some replacement LED bulbs for the Spitfire. These are to replace
>the 1157 bulbs on the running and brake on my 72 the LEDs work fine when
>you just connect them to a battery source so they do work. When I removed
>the left side bulb and replace it with the LED unit it wont work either
>brake or running, but it will work on the right, running only. The
>incandescent ones work on either side. Ive switched LED bulbs tried every
>combo of bulb and socket, checked the connections etc. and this is all I
>can get to work any ideas why the LED dont work but the regular lamps
>work fine???
>Ive resigned to using them in my truck but I really liked the idea of the
>LEDs for the Spitfire!
>
>
>
--
George Richardson
1957 Triumph TR3 - TS15559L http://www.key-men.com/triumph
1975 Triumph TR6 - Undergoing restoration
1972 Triumph Stag - Daily Driver
Key Men: Keys for Classics - http://www.key-men.com
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