eMart 10W 395-400nm 3 X LED Diving UV Ultra Violet Flashlight Torch with Magnetic Control Switch 100m Underwater Waterproof LED Flash Light 2 x 18650 Battery (Not Included) 10W 395-400nm UV Light, Waterproof for 100m Underwater, Great for Diving Come with Magnetic Control Switch, The Light Brightness Could Be Adjusted Smoothly Durable Aerial Aluminum Alloy Casing, Long Service Life UP To 100,000 hours Slip-Resistant, Portable, Stable Light Requires 2 x 18650 battery (Not Included)