Love this thing. Had it for 4+ yrs, 0 problems. Amazingly bright. I had a house inspector show up with one and he was USING IT TO HAMMER SOMETHING! No damage.Wish it had a clip or ring on it. Good as a defense weapon light and hammer - although hammering may destroy warranty.I also have a streamlight stylus pro penlight I carry all the time for several years. Fantastic. Since it is metal it is a good last resort defensive weapon.Now I am shopping for another ultra or ultra led for a gift. Great flashlight, great prices at amazon, great ratings, and prime shipping. LG!