Reply to "Surgery on Plastic Lenses for Observation Car Tail Lights"

TedWOGR Forum Member SUPPORTING MEMBERDIGITAL SUBSCRIBER

Well, that was easy. Shoulda tried more voltage, but afraid to blow something up as they are 3vdc led. Didn't know how the circuit worked. Presumed it they were in series? This is 5vdc with a jumper across the resistor pads. Is pretty good that way, but using your thumbnail resistor calculator, from 12 to 6vdc would take around 300 ohms , so use a 330ohm resistor, and we're golden. 18vac would be a diode and around 660ohm.

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