Handy but turns on too easily
Tiny and nice and bright, would be the perfect keychain light - except it turns on much too easily. I keep my keys in my purse and it would be on when I took them out, draining the batteries. It's possible to replace the batteries, but very difficult to get it back together just right and batteries will probably cost you as much as the whole light does anyway. For the number of times I really used it probably cost me $2 per light.