They are good, i asume you seen my TFF test,s ive done on them, sofar for bang VS buck and mAh they are the best $$$ value in my opinion out of the redilast, hi-max, solarforce v2,s ive tested and will do 3 + amp discharges no problem.
Just remember not all trustfire flames are equal from all sellers and im only talking about the ones ive test from one supplier as ive not had much luck else where, but if you want a well matched cells and the best money can buy the redilast 2600 mAh have to my choice but they are 300% more in price a pair for not much more performance really.