Is there a way to wire up these cree xbd- 4 12w leds with a nano biscotti or ultimate fx? I've tried both with 7.4v li-ion batteries and transistors with 5v resistors with no luck. I got it to fire up for a couple of seconds but then it would shut off. How do I fire up these leds? Do I need a more powerful soundcard? Or do I need more batteries, like 14.8v? Is there a good wiring diagram somewhere? I really want my saber to be super bright as possible. Any advise will be great . Thanks