Silva Trail Runner Free H 400 Lumen 37808. Modes: Max (400 lumens); Medium (200 lumens); Min (50 lumens). USB-rechargeable hybrid battery designed to use in combination with hybrid battery case which can also use AAA batteries. Integrated cords in the headband. Intelligent Light Technology is a unique combination of long reach spot light and close flood light. 80m beam distance. Water resistant. Impact resistant. Strobe. Requires (1) Lithium battery (included) or (3) AAA batteries (not included). Color: Gray. Boxed with hanging tab. Specifications for Silva Trail Runner Free: Manufacturer: Silva Color: Gray Light Output: 400 lumens Package Contents: Silva Trail Runner Free