1、Made of quality aluminum alloy material, anti-deformation, sturdy and durable. 100M waterproof depth. 2、The flashlights can lighting 50-100 meters underwater with max 650lm bright light, long work time. 3、Rubber tail switch, anti-slip, easily touch to change light mode. 4、Built-in spring structure at the tail, copper-plated connection surface, effectively protect from short circuit and poor contact. 5、Suitable for diving, hiking, camping, outdoor cycling, night fishing, etc. Features: 1.Made of quality aluminum alloy material, anti-deformation, sturdy and durable. 100M waterproof depth. 2.The flashlights can lighting 50-100 meters underwater with max 650lm bright light, long work time. 3.Rubber tail switch, anti-slip, easily touch to change light mode. 4.Built-in spring structure at the tail, copper-plated connection surface, effectively protect from short circuit and poor contact. 5.Suitable for diving, hiking, camping, outdoor cycling, night fishing, etc. Specifications: Material: Aluminum alloy Weight: Approx. 262g Color: Black Head Diameter: Appeox. 45mm/1.8in Tail Diameter: Approx. 30mm/1.2in Battery: 2* 18650 li-on battery(not included) Diving depth: Approx. 100m Lighting Range: 50-100 m Waterproof grade: IP65 Life Time: Approx. 100000h Max luminous flux: 650lm Packing List: 1*Flashlight 1*Strap