Super bright, blinding effect. Skid-proof Design. Waterproof design, "O" ring sealed. Output bright can come to 300 lumens (MAX). 3-mode adjustable Brightness, High, Low, and Strobe. Adjustable focus range for different usage, rotating to adjust its focus. Zoom In/Out to adjust its Focus: x1, x250, x500, x1000, x2000. Clip for convenience carry. Internal wiring applies the high efficient booster circuit. Working voltage is wide and can utilize the batteries in the largest extent. Suitable for Self Safety, hunting, cycling, climbing, camping and outdoor activity etc. Specifications: Colour: Black Lumens: 180 Reflector: Convex Lens Material: Aluminium alloy Model of LED: CREE Q5 LED Switch: Tail-cap press ON/OFF Battery: 3 * AAA / 1 * 18650 3.7v Battery (no include) Size: 3.5*3.5*14cm Weight: 127g Item Includes: 1xCree Led Ultra bright Adjustable Focus Flashlight 1x AAA battery holder .(for using AAA battery ,Not include battery) 1x Plastic Tube (for using 18650 battery ,Not include battery)