Powerful multi beam headlamp intended for endurance oriented outdoor activities. Powerful, high performance lighting. 370 lumens in Boost mode and 280 lumens in Maximum mode. Multi beam lighting: wide angle flip lens that shifts instantly from a wide beam proximity lighting to a focused beam long range vision. Constant Lighting technology for Economic and Optimum modes:. Brightness does not decrease gradually as the batteries drain. Automatically switches to reserve mode when batteries are nearly spent. Standard Lighting technology in maximum mode. Several programmable lighting modes adapt to light intensity and burn time to the activity. Battery charge indicator light: warns when the batteries are approximately 70 % then 90 % discharged. Switches are protected from accidental operation when light body is in upright position. Water and weather resistant for all weather use IP X4. Top strap provides additional stability when needed. Perfect for endurance activities. Long burn time. Weight: 175 g. Beam pattern: wide and focused. Energy: 3 AALR06 batteries. Battery compatibility: alkaline, lithium same brightness with 2x the burn time, Ni MH rechargeable same brightness with 1.5x the burn time, Ni Cd rechargeables. Certifications: CE . Water tightness: IP X4 weather resistant.