Best Caming hunting Headlamp led head lights

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• Long brightest illumination up to hours
• High efficient booster circuit, working voltage is wide and can utilize the batteries in the largest scope.
• Adjustable base is provided for each head lamp, with back and forth inclination.
• Waterproofing design, except for diving
• Recharge and changeable battery 

Specification
Cree XM-L l2 headlamp
led Model: 3x Cree XM-L l2
Output bright can come to max 8000 lumens [lm] 
The one-button switch: 1x Cree XM-L l2 / 2x Cree XM-L l2 / 3x Cree XM-L l2 / blinking
The battery model is needed: 2x18650 3.7 V (battery not included).
LED indication for power on / charging / full charge
Input: AC100-240V 50-60 hz
Output: 4.2 V 500mA
USB cable output, may as emergency power bank
Color: black