a few LED questions
I have been modding my ps2, It's been painted a window mod, and I'm thinking about adding a flip top.
but for my next mod I'm going to install 2 yellow LEDs, to light up the window mod, so far I have 3
places I can wire them to, directly to the mother board which is12v of power, on the fan power supply which is around 7v, or the usb which I read was 5v, the LEDs are 2.1v and I have 2 of them. Which area is the best to hook them to, and is their any way I could do this without using a resistor, radio shack is closed, and I would like to finish this tonight, so the only way I could get a resistor would be to steal one from some other random electronic thing I have laying around.
also (just making sure) if LEDs are wired in series, will the voltage be halved between the 2, if so then the 5 volt usb, will be at 2.5v when it's split, will this work or is a resistor still needed?