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HOW MANY 5MM WHITE LEDS CAN BE CONNECTED TO A 12V BATTERY??? Answered

I wanna use some 5mm white leds as a head lamp for my bike...
The battery is 12v
So how many leds colud be connected for a bright light and also tell if it is to be connected in series or parallel for longer battery life

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iceng

6 years ago

The big question is what voltage and current rating are your LEDs,
then we can answer your inquiry.

The ones I last used were 22LEDs 3.2VDC @ 20ma  Solved here.

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