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  1. J

    Resistor Values?

    I am using this great tool found here to calculate the value of resistor needed. For example with 12Vdc supply voltage, 2 forward voltage (per led), 20mA of forward current, 5 leds it recommends a 120ohm 1/8 resistor. Can I use a 1/4 watt resistor? Would it have any effects on these...
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