how would that driver differ from all the drivers that already work great w/ the MTG2?
I also doubt the price will go significantly lower - but at least it is already lower than the SST-90.
IMO, $25 for 1800 to 2500 lumen is certainly ‘useful’…
It doesn't need a MT-specific driver, does it? I think everyone here who's tried it with ordinary buck drivers has found it works fine, I can't recall anyone finding a buck driver that wouldn't drive it (of course the input voltage will always have to be above the Vf, which it will be even with only 2 cells in series). Ferinstance the stock driver in the S1100 (3 18650 in series, single LED) will run multiple series LEDs without a hiccup, and Vf is Vf, the driver doesn't care whether it's one LED or multiples. The driver I tested ran one XM-L at 3.23v/3.31a, two in series at 6.36v/3.25a and three in series at 9.56v/3.70a.
We’ll probably find that the buck drivers stop working (or have a huge drop in current) when battery voltage is <1V over Vf.
But that’s not much different than XML2 in single cell lights…and is better than erring on the over-discharge side 
We are lacking a high power boost driver - which imo is kind of irrelevant for single cell lights, due to short runtime, but that would be nice for lights w/ several parallel cells…
6v MT-G2 direct drive off two cr123s, ~650mA. :O
Really looking forward to the beamshots, that reflector looks superb!
Bridgelux C9000… $55 for 15,000+ lumens… 15,000 Lumen Bridgelux C9000 Light Engine
They have smaller arrays that will outshine the MTG for less bucks.
so would $25 in xmls…but I still like the mtg2 
This looks promising. That driver is decent too. Not sure it can handle 30W+ though (5A at emitter).
Now the wait for beamshots.
The CW should be available quite soon… any info on a NW or CW?
I bet it can, especially if potted in a copper pipe cap. Should be plenty of room for that in the defiant host!
If somebody can tell me which resistor to change, and what to try, I’ve got two of those drivers and I’ll see if it will push an mtg2 harder than it does in stock form. At least it is much cheaper ($5.8) than the 3-18V and 5.5-12V 9A drivers that I’ve tried ($15 - $17).
Actually, disregard last transmission. I’m packing up my flashlight stuff tonight. I’m moving again soon and I can’t get any packing done when I have access to all my hobby stuff 0:)
I’m with both of you. I really love the Bridgelux leds. To me they put out some the nicest light I have ever seen. I bought some 10watters that I have used for “off roading” and plan to use for indoor lighting. Two 10 watters to one 18v laptop power supply will light up a big room with luscious light.
EDIT: I will check out your link in a minute, but wouldn’t a bridgelux in a flashlight/spotlight, wouldn’t you need a very huge reflector? I’m not against it. I think the idea rocks. All these emitters can rock in the right place.
The right super big reflector would be awesome with multiple xml’s. I really dream of something like that, but I have this one spotlight that is currently mostly useless to me. It is much easier (time is money and life) to mod it with one MT-G2. I will be posting some picks of the interim hobbled version in the OP shortly.
Dthrckt, when you are ready look for resistors with top marks that start with R. Something like R082 or R100. Take a picture of them and we’ll figure out how to make it drive harder
Actually, I thought the 3T6 driver was set to 4.5A already. It’s dropping down to 3A when driving 6V Vf on it’s own? Maybe a mod will not help.
Illumination Machines have some big reflectors that are easy to mod for the Bridgelux…
Ah, so that's who makes the 80mm reflectors Cutter has listed. Neat.
+1, and with that reflector the C9000 is a monster. So much fun. 
Nice pic!
Looks like you could cram 2s2p in there. Taking that thing apart will drive you to buy a hobby charger
Looking foward to beamshots!
Interesting mod! Beamshots please! 
So you got the emitter soldered? How’s the new seeing eye dog working out? 8)
Impressive mod.
Call me a noob, but I can’t find much on the MT-G2?
http://flashlightwiki.com/Brightness_Bins
