I was watching those… I have the 1x18650 version of that SF-turbohead clone. Mine required some DIY repair work in the switch to get it working properly. Out of the box its a stinker. Good luck with yours!!
Definitely… its now one of my favorite lights. This light has replaced my ~$130 SF-6P / Malkoff / 18650 setup as my night-jog light. Killer 2.8A, cigar-hold setup. Sucker almost out throws my 3.5A modded HD2010, the two are very close. The higher lux of the 2010 can only be seen at the end-most extremes of its open-field reach.
I believe it and the trustfire X9 are the farthest throwing 1x18650 lights under ~$50
How well the 2x18650 version performs depends on the switch design and driver circuit. If it hits the LED with ~3A it will throw like crazy, and should near 45-50K STL-V2 territory.
The cells and the chargers are crap that’s no question, but I saw this light (what I won) only with xm-l. I have a single cell version of this, and it’s a strong thrower. I hope the transaction will take place smoothly.