LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Electronic vs. Thermal Flasher?

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Old 05-22-2003, 08:55 AM
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Question Electronic vs. Thermal Flasher?

May be a silly question, but what is the difference between an electronic and a thermal turn signal flasher? Pro's and Con's? Thanks!
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Old 05-22-2003, 09:27 AM
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A thermal flasher has a bi-metal strip in it that heats and cools. The rate at which it does this is dependant on the make-up of the strip, itself and the amount of resistance in the lamp circuits. This results in the "flashing". Ever notice someone pulling a trailer, that the turn signals flashed very fast? That is because the normal flasher on the vehicle was not rated for the additional load of the trailer lighting. More resistance=more rapid heating of the flasher=faster flashing. That is why they sell heavy duty flashers for towing.

An electronic flasher is not dependent on a bi-metal strip and will perform the same no matter what the load (at least that is the way I understand it ).

Sorry if that is more than you wanted to know.
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Old 05-22-2003, 09:44 AM
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Cool

That was the perfect amount of information. Thank you for the clearification on the matter!!!

I have read many of your post on the matter of the blinker and I have taken heed. I am going to try a couple of things and see if I can get my blinkers to work properly again.
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Old 05-22-2003, 11:07 AM
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Talking

Just purchases a Flasher from Wal-Mart for $1.98+tax. Now, everything seems to be working properly!!! Thanks again everyone!!!
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