Got it yesterday. First impressions are "not so positive":
Pros:
- screw-in pill with long threads
- seemingly good thermal transfer
- the included cells do work without magnets or similar spacers
- cells seem to be protected (even though not mentioned in the wrapper??)
Cons:
- cells are too long for the light (have to loosen all parts a bit, maybe 5-10mm in total!!)
- seriously underdriven (TC current 1.75A with 3x26650 -> <0.75A / emitter -> ~2000 emitter lumens - good for longer runtimes though)
- problems working with 2x18650 / 2x26650 (doesn't always stay on when high / med - low is ok)
- included cells were not matched at all (3.72 ... 3.98V)
- many small dents in head
- bezel was badly scratched on one side (~1cm wide, through ano, bare aluminum visible)
- included charger is slooooow (0.5A for both)
1.75A at the tail (with the lousy cells so you are actually going to get higher than usual current anyway due the higher resistance) is pretty low with 3 cells.
IIRC, the TR-J12 is slightly above 2 amps with 3 good cells like XTAR 2600s....actually not the lowest resistance around here but decent enough.
find an MMA or jujitsu class and get him to try some sports. also do what he can to avoid them , different camp or something. being able to defuse conflicts is important too
i would not suggest try to sucker someone stronger or backing down either.
and if all else fails a ball peen hammer is useful. kidding of course
It's no use, the classes of 5 XM-Ls, 6 XM-Ls, 7 XM-Ls and even 10 or 20 XM-L showerheads would be the same output.
The limiting + deciding factors would be the drivers, which is directly influenced by the batteries. Dwelling into the drivers, it would be limited by the components' power (heat dissipation), hence size as well with regards to driver diameter as well as host-driver cavity size.
oatmanutd / lumenhunter: How are the provided cells fitting in your lights? How long are the cells? What is the length of body tube in 3-cell configuration? Can you send a photo with all three cells in, without the tail cap?
(Lot's of questions, but please answer, so I know if I got a lemon)
Someone had figured that it would be fun to have two springs on top of each other:
..so I unsoldered one of them and now the cells are almost fitting (Read: If I fully tighten the tailcap, the light turns on! If I leave a 0.5...1.0mm gap, it works well.
And quickly I tried the ceiling bounce: The light is not as dim as I thought it to be. About in par with DRY Turbo of Skyray King (which is about 15% more than Skyray 3 x XM-L). And with that small current I would think that there are no thermal issues.. We'll see.
Just wondering if the Keygos 7 runtime is much different from the TR-J12, and which one is preferred by people that have both?
I am also wondering about the SKY RAY L2 7xT6 Cree XM-L T6 8500, just can't quite decide on if I should get a 8500 Lm light, or the TR-J12, which by the sounds of it is at least as bright.
I’ve sent off a couple of emails seeing if I can buy just the bulb. If it works as advertized, a couple of these would rock as DIY video dive lights in modified Maglite heads.