Powering LEDs

[mrklean]

I am planning to put LEDs into the side of my case into pre-drilled holes, i have been thinking on what to power them with and i cannot come up with any ideas. Can anyone give me any ideas on what to power them with?


They are 3mm LEDs with a 12v resistor or a 5v resistor. Or better yet if someone can figure out how to power them without a resistor that would make this much cheaper.

Thanks

Mr.klean

[SgtM]

Welcome to TBCS.

You have some options. You'll need resistors either way. If you have a spare molex connector, you could run them off of that. The power and HDD activity LED's are both 3v, so you could just splice in there, and get your 3v.

Resistor calculator:
http://www.luxeonstar.com/resistor-calculator.php

LED Tutorial:
http://www.thebestcasescenario.com/forum/showthread.php?t=642