River Rock 2C Cree
I purchased a River Rock 2C at Target a week ago on a whim... Turns out that it puts out more useful light than my Surefire 9AN Commander. I have used it every night this week for work on the original set of alkaline batteries and it has yet to diminish at all (very good regulation). My Surefire 9AN does throw further, when freshly charged, but does not put out as much useful spill and diminishes continuously as it runs... providing slightly less than an hour of "useful" light for my purposes....
The River Rock's emitter star sits in a nice, large, aluminum heat sink that can be unscrewed with a spanner, is marked 'CREE 7090', has an aluminum OP reflector, and nothing is glued so the light can be completely disassembled. The finish is a simple, but even and flawless, black anodizing, the threads are smooth, even and well cut, both ends are sealed with o-rings, and the switch is a tail cap forward clicky with momentary on. For @ $27 its a very nice light!