1. Durability: aerospace grade aluminum alloy material, case made through CNC machining, military level 3 stereoplasm anodic oxidation, wear-resisting solid, and good heat dissipation ,resist rust and corrosion 2. Extremely long life. LED last over 100000 hours or more, no need to consider replacing the cap for the whole life. 3. Skid-proof and water resistant design, Best suitable for outdoor camping, climbing, cycling, etc 4. 1x18650 Battery (Does not include) 5. Flashlight Type: Safety,Handheld 6. Emitters Quantity: 1 7. Lumens Range: 500-1000Lumens 8. Color Temperature: 6000-6500K 9. Feature:Waterproof,Lightweight,Portable,Professional,Rechargeable,Adjustable focus 10. Switch Location: Middle 11. Mode: 3(Low-High-Strobe) 12. Power Source: Battery 13. Battery Type: 18650 14. Battery Quantity: 1 15. Battery Included or Not: No 16. Zooming Function: Yes 17. Rechargeable: Yes 18. LED Lifespan: 100000 hours 19. Body Material: Aviation Aluminum 20. Package Contents: 1 x Flashlight