I normally carry a Surefire L4 Digital Lumamax, but since it's back at surefire for a warranty repair, I picked up this guy: RG Lights : Mini Pen LIght It's very well made, push down on the switch and it comes on, unlike many of the cheap chinese-made lights. It really seems like it puts out 100 lumens. Best of all, it uses a cheaper battery than the SF light. Unfortunately, it's length isn't usable, the switch isn't as usable, and the beam pattern sucks. Anyone know who originally made this light? It's obviously rebranded.