Have this lamp for several years as a key ring, and am very satisfied. She has a high luminance, specified are 60m, which should just work perfectly. Since I work in shifts, I have quite often they've used. It's me (with keychain) to take quite a few times fell without harm. The robust impression when buying has thus confirmed. The battery I have been changed once. "Wobbly" as write some previous speakers, it is not. It is true that going on the head when turning, ie when switching on and off at some point (which does not bother me). What is so shaky, I do not understand. When I compare what I for 7, - got (that I have paid at that time) otherwise, was sure of the favorites. Since then I have already given away a few lamps, and they can safely recommend.
