I'm not sure how to find it, but there was a super light shootout a while back, and there was a light called the Ken4 that pretty much owned anything else I've ever seen. There is also some straight up in the air beamshots of somebodys Xenon Arc Tank Light around here somewhere. I think it belongs to Lotsalumens. (Ralph Russel has one too, but I don't know if he's got it running yet)