The USB HAZ-LO intrinsically safe headlamp is ideal for those in potentially hazardous work environments, with the added feature of USB rechargeability. With Class I, Div. 1 safety ratings, the dual-beam headlamp has three output modes to cover a variety of tasks: Spot for a focused beam, Flood for tasks at arm's length, and a Combo setting for even more light output. An extended runtime of 7 to 13 hours will last throughout your entire shift. Comes with both an elastic head strap and a rubber hard hat strap, as well as fasteners for strapless mounting to a hard hat. Features a spot beam for a focused 89-foot beam at 190 lumens and a flood beam mode for a soft 120-lumen light that won't tire your eyes. Combine the two modes for spot and flood combo mode for 250 lumens for even more light when you need it, like for those early morning dog walks or jogging.