Which C8 to get and Where?

Yeah +1, this is a great light, mine pulls around 3A with a fresh Trustfire Flames, and since it is a U2 binned XM-L and not a T6, it should be brighter than the KD C8 and on par with the XinTd C8. Check out my review here

Also check out the Ultrafire C12 XM-L T6, also from lightmalls. It is pretty much a C8, but with a thicker and wider pill and better heat sinking. I have also reviewed that, here