I purchase this flashlight because the regular flashlight I be use to walk the dog at night keep eat battery and be not bright enough . this flashlight do not go through battery as quick as my old one and be much brighter . I have only change battery once , and I think that be only because I use cheap battery . the only thing I wish I have for it that I do not be a wrist strap . I have drop it in the yard a couple of time . I may get the wrist strap next . I would recommend this light to any one that need a small flashlight .