Thanks Kevin. Must have been confusing the lighting controller with the afterburner ring controller, which can be powered from a 2-cell Lipo. Either way, I'll probably power both of them from a A123 battery.

Any other takers for tips/tricks? Any pointers to installations?

I think I saw a post where somebody recommended to "chisel out" the lenses with a Dremel for more brightness. Any opinions on this?

Hans.