I have sold a few and the reviews are mixed. But to turn them off is simple. Just slip your knife point into the hole and pop up. The light battery cannot be changed, but the battery last longer than most. The list is like this: Firenock & Nocturnal both equal, Easton, magnet can go bad, battery can go bad, and all others fit into the last catorgory, others are better. For what its worth, my 2 cents and change.