lightsaberpic.jpg

So what are the resistors in the picture. I hope this is the right thread. Also if there is no. definite answer and the answer varies between leds, and other electronics in the setup, could you explain how to find resistor values. I was gonna ask the guy who posted this but his last activity was in 2010
Thanks

Original thread
http://forums.thecustomsabershop.com...w-DVD-Tutorial