Features: 1. The body of this flashlight is built of high quality aluminum alloy， and it has a very solid construction 2. Internal wiring applies the high efficient booster circuit， and can utilize the batteries in the largest extent 3. Excellent waterproof， suitable for outdoor environment， adverse weather conditions except for diving 4. Focus function that allow the beam can be focused. Specifications: 1. Emitter Type:CREE XM-L T6 2. Brightness: 3000 Lumens 3. Power: 8W 4. Bulb Quantity: 1 5. Light Color: White 6. LED Lifespan: 100，000 hours 7. 5 Modes: high / middle / low / strobe / sos 8. Lighting Distance: 500M 9. Battery Configuration: 1 x 18650 or 3 x AAA batteries ( NOT Include ) 10. Input Voltage:3.6-4.2V 11. Runtime: 2-4 hours 12. Switch Type: Clicky/Clickie 13. Switch Location: Tail-cap 14. Lens: Convex Lens 15. Special Features: Zoomable 16. Material: Aluminum Alloy 17. Color: Black 18. Dimensions(L x Head Dia. x Body Dia.): 5.31 x 1.37 x 1.10 inch / 13.7 x 3.5 x 2.8 cm Ideal for outdoor activities lightning like mountaineering， camping， hiking， cycling， hunting， search and rescue inspections， etc. long time using life. Package Includes: 1 X CREE XM-L T6 5 Mode Focus Flashlight 1 X Battery Holder for AAA Battery 1 x 18650 Battery Plastic Tube 1