I have several of them. They sure beat the old 6 volt lantern batteries strapped to my belt for coon hunting. I do walk around inspections on my over the road trucks at night as well as look for parts in our dimly lit parts room and check for parts on salvaged trucks. I just don't hardly use a flash light any more. I even use it for night closeup photos. Just a flash doesn't work that well. Pointing the headlight at the part I want to film makes a picture like daylight.