4000lm Cree XM-L2 LED Powerful Handheld FlashLight

Emitter: 4pcs Cree XM-L2 U2 LED
Practical Brightness: 4000 lumens maximum brightness
Battery: 4 x 18650 rechargeable batteries (not included)
Voltage Input: 2.7~4.2V, 4.2V max
Switch: Mid click, and Stepless Adjusted
Mode Arrangement: 100%~1% Stepless Adjusted, Double click for Strobe mode.
Circuitry: Digital Regulated 8000mA Current Output
Runtime: 1.5 Hours for 100% use (manufacturer rated)
Lens: Coated Glass Lens
Reflector: Aluminum Textured / SMO Reflector
Other Features: Waterproof and Shockproof
Accessories Included: A gift box.
Weight: 0.455kg (0.615kg if box included) 
Instructions for use: 
1. The flashlight start working by clicking the switch button. 
2. Pressing the switch for 3seconds, brightness gradually change from weak to stronger. 
3. Double click, light turn to strobe, return last statues by double click again.  
Caution: 
Please take batteries out if you don't use it