Hi guys, I received the "Engineer prototype" version today, sorry my english is not too good.. but I hope understand.
First, MicroFire is not a equal other chinese "XXXFire" budget light. Quality is very good, equal other top chinese brands. Very nice black matte hard anodizing. Lens and reflector is clean. The switch is "soft" and very silent. Beam quality is good, comes with OP reflector, no ring, donut hole etc. I think a lighter orange peel ref. would be better. On low mode slightly visible pwm flickering, but on high mode is no problem. The strobe mode is not too aggressive.
white led = Cree XP-G (I think R5-bin), tint=clean white! (not blueish, greenish, yellowish)
red, green and blue = Cree XP-E
I use unprotected Panasonic NCR18650A (3100mA) battery and absolutely no rattle. My biggest battery, XTAR 18700 working perfect with this flashlight.
But now, "one picture worth a thousand words". I hope you like it.
Important: battery polarity reversed. Tailcap (+), Head (-)
(final version coming with holster, and I think UV and IR led available)
more beamshot pics (gif) I will add later