Diving Flashlight Torch, 900Lumen, Aluminum Alloy Body, Underwater 328ft, Magnetic Control Switch, Powered By 18650 Battery CREE XM-L U2 LED, 900 Lumen. Power by 18650 battery. Built of aircraft-grade aluminum alloy, solid construction. IPX8 Waterproof, Can be used Underwater 328ft. Smooth reflector (rather than textured reflector). More concentrated beam, Wider range. Magnetic Control Switch, Convenient for 1 hand operate.