Streamlight's high lumen lithium battery headlamp, the ProTac HL Headlamp, delivers 540 lumens and features a lightweight, machined aluminum body. The headlamp enables users to select among three programs to suit their preference or operating needs: high/medium/low (the factory default setting); high only; or low/medium/high. It uses two 3V CR123A lithium batteries. It measures 3.66" wide and weighs only 6.6 ounces. The headlamp comes packaged with an elastic headband and a rubber headband for helmet mounting and comes IPX4 rated design for water-resistant operation and has impact-resistance up to 1 meter.
