I've had one of these on my keychain setup for over a year. Consistent performer, no issues with battery drain or turning on accidentally, imho the best keychain light on the market at the price. For $25, buy 4 and throw one on everything. Also handy to put on a zipper and always have access to. I've owned most Nitecore keychain lights, and this is still my number one recommendation. If you're worried about it turning on in your pocket, just don't put it in your pocket. Use a carabiner and attach it a belt loop. I will say the included mini carabiner is not great, upgrade to using aNite-Ize .5 size S-Biner and you'll have no complaints.