Hi Guys,

Great read! I have a question regarding batteries. I couldn't find the equasion to figure out how much amps a certain light will draw.
I'm trying to figure out if I can use a 14.8V 2300 mAh (4S1P A123 - from a Dewalt power pack) rated to 15C with a 12V 20W Halogen light MR16.

If that doesn't work, I might try my hand at one of the DIY LED lights.

Appreciate it!