120Views2Replies

Author Options:

What Resistor Do I use with my LED Answered

Picture of

I have a 9 volt 17 watt power supply going to an old game system and I am adding an extra 5 volt LED to it so what resistor should I use to power my 5 volt LED?

2 Replies

user
11010010110 (author)2009-02-11

here. the solution with the less parallel links (usually solution 0) is the most efficient

Select as Best AnswerUndo Best Answer