Creazy&reg; 2X Ultrafire Tractical 2000 Lumen Zoom CREE XM-L T6 LED Flashlight 18650 Charger Skid-proof Design Reflector: Convex Lens Lamp base: CREE, high power LED. Waterproofing design, "O" ring sealed. Battery type: 1 x 18650 3.7v Battery or 3 AAA batteries (Not Include)