Features:1. Skid-proof Design2. Reflector: Convex Lens3. Internal wiring applies the high efficient booster circuit， working voltage is wide and can utilize the batteries in the largest extent.4. Waterproofing design， "O" ring sealed.5. Battery type: 1 x 18650 3.7v Battery or 3 AAA batteries (Not Include)6. Super Bright， blinding Effect7. Adjustable focus range for different usage8. Switch :Tail-cap press ON/OFF9. Clip for convenience carry10. Suitable for Self Safety， hunting， cycling， climbing， camping and outdoor activity etc.11. External Dimension: 35mm(Head)x25mm (Body)x 135mm(Length)Specifications:1.Color: Black2.Model of LED: CREE Q53.Material: Aluminum alloy4. Max output Lumen: 3000 Lumens5.3-mode adjustable Brightness，High/Low/StrobeSpecification of 18650 Battery:- Color: Red- Type: Rechargeable li-ion battery- Model: 18650- Voltage: 3.7V- Capacity: 4800mAh- Size: Approx. 6.6 * 1.8cm / 2.6 * 0.7in (Height * diameter)Package Included:1 X Flashlight1 X AAA Battery Holder(not include the battery)1 X 18650 Battery Plastic Tube1 X 18650 Battery