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I have a Led for my psp but it's a 3mm blue LED 5000mcd with free resistors.The LED Forward Voltage is (V) : 3.2~3.6 and my psp say it's 3.6v.So will I need a resistor for the LED and if so these are the resistor that I have 5V / 7.2V / 9V / 13.2V which one would I be using.If you can help thanx
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