Originally Posted by dougmc

Makes me wonder why all your lights are dying and none of mine are. I imagine we're even talking about several of the same models of light.

Every light (perhaps 8 total?) I've bought from DE I'm still using (except for that 2 mode P7 -- I lost it). They've all been dropped a few times, all the 1x18650 lights have been used as bike lights with the abuse that comes along with that (granted, most of my riding is on pavement), and besides the LED coming loose on one (which I fixed in a few minutes), I've had no failures.

I did have one 18650 battery come DOA from DE (well, it cooked my charger the first time I charged it), but DE replaced it easily, and the other 11 or so batteries I've gotten have been flawless and all are still in use.