When your task requires both hands and a bright light with a wide, flood beam, reach for the ProTac HL Headlamp. It produces 540 lumens of light that reaches 172 meters. Designed for maximum illumination with a wide beam to light an entire area. Features TENTAP programming, which allows the user to select one of three different programs, High medium low, factory default, High only, or Low medium high. Three lighting modes, High for super bright light with far reaching beam distance up to 540 lumens, 172m beam distance, and runtime of 1.75 hours. Medium for bright light and longer run times up to 95 lumens, 69m beam distance and runtime of 8 hours. Low for extended run times and when a less intense beam is ideal up to 18 lumens, 31m beam distance and runtime of 36 hours. Solid State power regulation provides maximum light output throughout battery life. 90 degree tilting head reduces neck fatigue. Durable, anodized aluminum construction and a gasket sealed, glass lens. IPX4 water-resistant to 1 meter impact resistance tested. Powered by two 3V CR123A lithium batteries included. 6.8 oz.