2000 Lumen Zoomable Cree XML T6 LED 18650 Flashlight Focus Torch Zoom Lamp Light Hunting Cycling Climbing Camping Battery type: 1 x 18650 3.7v Battery (Batteries Not Include) 3-mode adjustable Brightness,High/Low/Strobe Zoom In/Out to adjust its Focus: x1, x250, x500, x1000, x2000 Waterproofing design, "O" ring sealed. Battery type: 1 x 18650 3.7v Battery (Batteries Not Include) SuperBright, blinding Effect Adjustable focus range for different usage Suitable for Self Safety, hunting, cycling, climbing, camping and outdoor activity etc.