getbuggs
New Member
I was working on a battery charger which has a output dc voltage of about 9 V and 700 mA , i am connecting a white LED which has a operating voltage of 3.2 volts and 20mA, so how do you cut down the voltage of the source AND the current has also to be reduced to 20mA.. please tell me how to do it,, and the wattage of the resistor also ?