Elinkume 3W Underwater Diving Flashlight CREE Q5 LED Flashlight Torch Lamp 60M Waterproof High Power with Strong Light Beam and Long Distance,adjusting the light, Average life over 100000 hours. Diving depth: 50-60m Battery Type: 4x AA Batterynot-included ) Waterproofing Design:it is a good choice for your underwater diving sports, you can use it in rainy days, diving, swimming Special operational needs (such as levee patrol, inspection, search, site inspection, security, first aid at sea, night observable, etc.)