Gentos Senn Series Flashlight Brightness: 450 lumens (Boost)/380 lumens (high)/200 lumens (Mid)/30 lumens (ECO) |runtime: 4.5h (high)/13h (Mid)/37h (ECO) IP67 dust proof and water resistance/1 submersible High durability - shock proof (2M)/Anti-Scratch Coating Operated by Rechargeable battery Slide focus control to adjust spot and wide beam in 1 hand