I guess you could consider this the evolution of my original crowned cyclops
As soon as I heard that AW was selling the C-sized Li-ion cells, I knew I wanted to upgrade my aspheric lens mag to be able to use the same cell (as well as lose a few inches in length). I got in contact with Mirage_Man and he was able to whip me up something beautiful. Let me just say that anyone looking to have a maglight modded or shortened, Brian is the man to go to.
I've had this light for about a month now and it has been fantastic. It runs a Cree Q2 XR-E at 1500mA via a GD1500. I just received my tritium from B@rt, but unfortunately don't have any epoxy to set them into the C-sized mcClicky tailcap. Of course, it also got the glowpoxy treatment for the LED.
I've measured ~74,000 lux@1 meter. The best part is the regulation which keeps the light at this brightness level for quite a while. The Hotlips-C heatsink allows to use a E-can for holding the converter board, so the board is potted. Turned on, the light gets a little warm but that's it. The fins do a great job at dissipating the heat (although there isn't that much to dissipate in the first place).
Did I mention this thing is ridiculously tiny
I'll put up a few beamshots tonight