The USB HAZ-LO intrinsically safe headlamp is an ideal headlamp 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.