Jetbeam TC-R1 MCPCB dimensions

this info originally courtesy of moderator007

Reflector #1 being slightly larger in diameter (19.4 mm in diameter).

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Reflector #2 slightly smaller in diameter (19.3 mm in diameter).
http://kaidomain.com/S023424-19_3mm-D-x-13_4mm-H-Light-OP-Aluminum-Reflector?search=s023424 (slider note: I like this one better, the hotspot is a bit larger but without the hole in the middle of the hotspot)

some beamshots of the two reflectors, from this post

here is another post in that thread, result of keyword search “kaidomain”

there is a lot of good info in that thread, including pocket clips, drivers, and reflectors for the Original RRT-01, that also apply to the TCR-1, they all come up in the search for “kaidomain”