Features:1. Made of high quality aluminum alloy， this flashlight is sturdy and durable enough for long time daily using.2. Excellent waterproof， suitable for outdoor environment， adverse weather conditions3. Emitter Type: CREE4. Brightness: 2000 Lumens5. Material: Aluminum6. Bulb Quantity:17. LED Lifespan: 100，000 hours8. Modes: 3 (Glare， Low light， Strobe)9. Mode Arrangement: High > Low >SOS10. Lighting Distance: 300-500 m11. Battery Configuration: 2 x 18650(not include)12. Input Voltage: 3.6-4.2V，4.2V max13. Runtime: 3-6 hours14. Switch Type: Clicky15. Color: Black Package Includes:1x Flashlight(not include battery)