Streamlight ProTac HL Headlamp Black. This headlamp by Streamlight produces 540 lumens of light that reaches 172 meters. The Streamlight ProTac HL Headlamp w/ 540 Lumens is designed for maximum illumination with a wide beam to light an entire area. When your task requires both hands and a bright light with a wide flood beam don't forget to bring along the Streamlight ProTac HL Handsfree Headlamp. Specifications for Streamlight ProTac HL Headlamp: Manufacturer: Streamlight Color: Black Light Output: 540 lumens Battery Type: CR123A Bulb Type: LED Fabric/Material: Aluminum Weight: 6.6 oz Condition: New Battery Quantity: 2 Run Time: 1.75 Hours Features of Streamlight ProTac HL Headlamp w/ 540 Lumens: Solid State power regulation provides maximum light output throughout battery life 90 degree tilting head reduces neck fatigue Powered by two 3V CR123A lithium batteries (included) Durable anodized aluminum construction; gasket-sealed glass lens IPX4 water-resistant; 1 meter impact resistance tested Ships with rubber helmet strap installed; also includes adjustable elastic headstrap Package Contents: Streamlight ProTac HL Headlamp Streamlight 61304: ProTac HL Headlamp Black