TT GOS Super Bright 3000 Lumen Zoomable Cree Xm-lt6 LED Flashlight Torch Lamp 5-modes Skid-proof Design. Reflector: Convex Lens.Internal wiring applies the high efficient booster circuit working voltage is wide and can utilize the batteries in the largest extent. Waterproofing design, "O" ring sealed. Super Bright, blinding Effect Battery type: 1 x 18650 3.7v Battery or 3 AAA batteries (Not Include). Adjustable focus range for different usage. Switch :Tail-cap press ON/OFF.Clip for convenience carry