[FONT=Times][SIZE=7][COLOR=red] i want to make my xbox dongle light up. i have many different resistors but none are the ones it says i need. i was just wondering if i could use different ones or if it really matters.

Get as close as you humanly can and chose a bit bigger if needed. If you go smaller, you'll get too much current, things will get hot, hot glue will melt, and LEDs will burn out. And resistors are like 99 cents for 5 at radio shack. That's expensive for resistors, but still cheap enough that you should go get some and do it right.

Your gonna want to use 100 ohm resistors to light up your controller dongle. You can get them really cheap at www.lsdiodes.com, $2 shipping anywhere in the world.

I know radio shack's expensive. But you'll only need 5, and that's a whopping 99 cents. I'm all for shopping online to save cash, but come on. There's a radioshack in every town now. It's quicker and will only cost, what, 30 cents more?

And a resistance needed is based on the LEDs used.

To light up a controller dongle with a 3mm LED, which i assume this guy wants to do, a 100 ohm resistor would be ideal.

You know different LEDs have different specs, regardless of size, right?