Sorry to bring the resistors up again... but I purchased the Tri Cree XPE2 BBW from SaberBay on Etsy. He said that I needed to use a 1w .5ohm resistor on the blue LEDS only. Are any of you using the same? I read through this thread and it seems that people are doing all sort of different things.
So....anyone have any advice on the resistor front?