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LED xmas lights Answered

if i wired 15 leds in a parallel and powered them with a 3.5 volt power supply, at 300 mA Would that be ok without a resistor? because right now i have about 8 in a parallel powered by 3 triple A's (i know its a little to high for the leds) and they will stay on for about 1 hour before the battery goes weak. thnx alot everyone!

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