quokked - :wave:, it won't work in a M3. You will need a turbohead for it to work.
Gimpy00Wang - They are U-bin for brightness, but I forget the tint. Most likely SWO.
Danintex - I'll think about it... :nana:
koala - Thanks. :wave: (not all downboy, see below)
stockae92 - Actually, only the one in the middle is using a DB driver. The other two have zetex based drivers because I ran out of DB drivers. These are step-down converters and work when the input voltage is greater than the led voltage (>3.something?). 1 x CR123 isn't enough but 1 x Li-ion may be sufficient.
BugOutGear_USA - What cmacclel & stockae92 said, the Surefire M6's stock head is a turbohead. And the module works in a turbohead. The one used in the beamshot is indeed the 750mA module.
cmacclel - Thanks.
-YC