by dalewheat » Wed Jun 06, 2012 8:57 pm
I haven't measured the actual current consumption. The entire unit is rated at 2W @ 12V, so that's ~167mA max. I'd think a 500mA switch would be more than enough. I'm using it both as a build are illuminator and as a "power on" indicator. It reminds me to turn off the ATX power supply when I'm done with it.
A couple of big Luxeon stars under the gantry bracket, as you have mounted your LEDs, would also look pretty cool, I would think. They draw about 350ma each (for the 1W version) and you can string up 3 of them in series with a current-limiting resistor to run from 12V and still be able to switch them on and off from program control.