There is already another thread.
from Tom_E ’s pic.
Chinese quality control 
I would have chosen to put the screws 90 degrees away from the screws, just to be sure. The distance from the screw to the wire seems a bit small.
Anyone having any issues with their MT03s? Ordered three, and all have this problem. Medium mode does not work. When cycling through the modes, when it gets to “medium” it just flashes once, and doesn’t get any brighter. Has the same brightness as “low” mode. The rest of the modes seem to work properly. The lights involved are all 4S models, two nw one cw. Batteries used are Sanyo 18650ga.
Well, just tried some 18650Bs in one, and now I have medium mode? Of course, I can’t tighten down the tailcap. All three lights that exhibit this behavior have different sets of the 18650GAs. Weird. Any ideas why this could be occurring?
I have the MT03 4S with 18650ga supplied by Haikelite.
on low mode, one of the LEDs is brighter than the other 2
then on med, the 2 dimmer lights increase in brightness to match the bright one in low mode.
overall brightness from low to med is hardly noticeable.
the low low, high and turbo all seem to work normally.
Good catch, that’s exactly what mine is doing. Does it with GAs, Samsung 25Rs, but works normally with 18650Bs, which doesn’t supply enough amperage.
There’s only one thing that comes to my mind: screw this.
I got my MT07 NW & MT03 NW about an hour ago.
Loaded up a set of GA cells rested to 4.14v.
MT07 NW 3480lm
MT03 NW 6770lm
My MT03 looks to be a 2S2P.
My MT07 looks like it’s 4S.
Damn, didn’t someone test the MT03 at over 10,000 lumens at 30 seconds?
Hhmm, the MT07 is quite low but it is NW, not CW. Mine is doing 5,300 now w/resistor mod, but was 4,700 stock. Still 3,500 you got is quite a bit lower than the 4,500 they rated. Wonder if the 4S is lower lumens...
Everydaysurvivalgear I think. There seems to be some variance in output…
Disappointed to hear another MT07 NW at ~3500 lumen like mhalen’s (his was 2s2p if I recall correctly). I know NW is lower lumens but I wouldn’t expect almost 1,000+ lumens less. None of my other NW lights have this much of a difference. Did Haikelite ever officially release lumen ratings for the NW?
It's listed right there in the specs on their website, near the bottom, always been there: http://haikelite.top/index.php/haikelite-mt07-buffalo-cree-xhp70-flashlight-4s.html
Yep, mhanlen's MT07 NW was low output. Dunno if he ever heard back from HaikeLite - he was trying to reach them.
Yeah mine was 2S2P. They told me they would send me a 4s driver. They said that the battery tube is the same, just the driver is different. I don’t want to sound like I’m glad that unknown got 3500, but it at least confirms that I’m not the only one with a NW that got that. I’d be curious what others are getting too.
The MT03 sold out batch #1 but apparently the MT07 hasn't yet. Wonder what the changes will be for batch #2.
On their site they have MT07 CW/NW 5000/4500lm
And MT03 CW/NW 8760/7560lm
I suspect with fresh off the charger 30Q’s it will gain a little bit.
I’m more concerned with the configuration of my MT03. The entire reason I paid for these was to test 4S versions.
My MT07 tube is set up with springs diagonal instead of the 2S2P tube setup with springs side by side. Traces look different too.
I didn’t think they could add a 4s driver without a change in battery tube. Unless the driver has wide operating voltage range. But then why would a 4s make sense without a change in the battery tube. I dunno. My battery tube is definitely side by side and not diagonal.
Thanks Tom,
So the two NW reported falls significantly further from the advertised claim than the CW.