This head torch is possible the worst thing that I have bought online. The product is cheaply made and was broken before I'd even taken it out of the packet. I wouldn't expect it to last very long even if it had been working in the first place. The build quality is highly disappointing, the materials lightweight and cheap the design fairly poor as well. All in all, not worth the money paid for it!
Great light, very bright with 4 settings, 3 different brightness levels and one flashing... used it for some time now camping and cycling and not changed the batteries yet... the only thing stopping it from getting 5 stars is the strap is a little on the tight side and I have to have it completely undone to fit my average size adult head, so big heads beware :)