Alldaymall F-882 Cree Xm-L T6 LED 1800 Lumens Scuba Diving Flashlight Underwater Waterproof Torch Submarine Light Lamp Emitter Type: CREE XM-L T6 LED Brightness: 1800 lumens maximum brightness Water Resistance: up to 60 meters Power by: 1 x 18650 (not included)