I received one of these from Meritline yesterday. The reflector looks promising for MT-G2. Only issue with the light is a very small hollow pill. Fixable, but not ideal. I do like the light though. Running an MT-G2 on two 26650 cells in DD configuration would give decent output. I got it for $14, but a few weeks later it was on for $8.99. I cannot remember the codes, or even who told me about it.
Edit: Ahh, here’s where I found out about it.
http://www.meritline.com/showproduct.aspx?ProductID=85454&SEName=zoom-cree-t6-5-mode-memory-white-led-flashlight
I modded it for more output and added some thermal compound to the star rim. Surprisingly, it doesn’t perform that bad. Even with that little bit of thermal contact, it still puts out over 750 lumens with a 1.4A tailcap current after a few minutes. It would run like this all day, as the host handles heat quite well. An MT-G2 is going to overheat it eventually, but I may give it a try anyway.
Edit: I believe this light in single-cell form is commonly referred to as a C10.