RioRand 800lm Lumen CREE XML T6 LED Waterproof Underwater Diving High light Lamp 18650 Flashlight Torch Powered by RioRand Advanced Technology 800lm Lumen CREE XML T6 LED Waterproof Underwater Diving 18650 Flashlight Torch Outdoor activities (hiking, camping, hunting, survival, hiking, dive sea, etc) Switch mode: Rotary switch Waterproof: underwater:30 meter