Video review by Selfbuilt is here:
CPF review page:
i want to know how much the price when it available at fasttech :bigsmile:
Ryansoh3:
I think Selfbuilt’s video review is the pre-production version. The production version is a revised 02 and has a constant-current circuit design for constant output, among others.
this is a really nice light!
Thanks for pointing that out. 
The production version also has a lanyard attachment point, and a slightly wider magnetic control ring - two points Selfbuilt commented on.
Thanks for the info on this tatasal. Great price.
Going to subscribe and think about it, but ill probably be in
How do you know that?
Niwalker says so.
is it possible to have a driver that stays in regulation with the mtg2 with a 2s2p configuration?
Some quick and dirty calculations, please correct me on mistakes: The MT-G2 has a Vf that is about 6.5 V at 4A current (this is my led-current guess in this flashlight), various resistances in the flaslight eat say 0.3V, the driver may eat another 0.1V so two batteries in series must deliver 6.9V under load. A popular Li-ion (Panasonic NCR18650B Protected 3400mAh) under 0.5x4=2A (there are two series, so 2A per serie) load stays over 6.9:2=3.45V for over 50 minutes.
So I'd say yes, a driver can be be had that keeps the light in regulation for quite some time.
ok - thanks for the explanation - thats what i was thinking
Hi,
The Niwalker page says this has an SMO reflector:
http://www.niwalkerlight.com/content/?266.html
Is that correct?
In Selfbuilt’s review, it does have a smooth reflector too:
I’m not trying to be obtuse, but I must be missing something. Their website doesn’t say anything about changes from the versions Selfbuilt tested. Yes, it lists constant current as a feature, but that doesn’t mean it really has it in the sense the FA01 does, or that the shipping FA02 is going to perform differently from the one Selfbuilt reviewed.
Yes, easily. Even if they’re using the 6V MT-G2 (which we don’t know). You can do a buck/boost on a 6V MT-G2. Or a boost circuit on a 9V or 36V MT-G2.
Thanks for the heads up... will enjoy adding this light to my collection.
I have sent an email to Bill and to Niwalker’s technical regarding this concern.
Are you sure they changed it to a boost/buck? I thought they claimed constant output even on the pre-production version.
they claimed constant current to begin with as far as i know