How long have you been running Olight? I see they have great deals and I have been very tempted to buy one. The only reason I haven't is due to all the negative press I have seen about them, but to be fair the people I do see complain about them come from the "Gucci" gun forums.
Thanks for the advice!
I've had my Olight for about 2 years now. Still no issues. I do not intend on putting it through a torture test to see how it will fare, so can't say anything about that. I have it mounted on a full sized 9mm and it has always stayed secure. From what I heard, that guy dying from the Olight light exploding when he had it in his mouth was due to him using the wrong batteries.
Beyond that, yes, Olight is Chinese. Even many of the top brands have their products made in China. If you got the money, I would probably go with the battle tested brands/lights (I did for my AR15 light). I am a frugal guy so I went with Olight. No regrets so far, and I hope that I don't ever get any.