Quote:
Originally Posted by kerry
LED bulbs won't work if they're connected to a battery with the leads reversed. Is that true in household bulb sockets also? Are household LED's 120v or 12v with a transformer in the bulb?
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Not true, since A.C. switches between plus and minus. Reversing hot and neutral is more a safety issue than a functional one.
I don't think that LEDs contain a transformer -- probably a switching power supply to step the voltage down to something usable by the LED cluster.