Specifications:
    
Illumination levels
Luminance:  High 4000 LM   Middle  2800LM       Low 1200LM  Strobe4000 LM   
Duration: 1.5-5 hours
Max Range: 800m
Impact Resistance: 1m
Water Resistance: IP-67
LED Bulb: 4*CREE XML- T6
LED Lifespan: 100,000 hours
Battery Type: 4400mAh Li-ion Battery Pack
Input: 100~240V AC 50/60Hz
Output: 8.4V DC/1A
Recharge time: About 3.5-6hours
Crust Materials: T6061 Air Aluminum Alloy
Switch: Head switch
Size: Headlamp:4.4* 5.5cm
N.W: Headlamp:239g Gift box:650g
Box size: 220(L)mm*120(W)mm*85(H)mm
Packaging: Battery, charger and gift box
Application: Mining Working , outdoors, vehicle lights.

Features

4× 18650 4400Mah batteries powerd 4 Cree XM-L T6 LED can create a max output of 4000 lumens. You can also choose 8800mAH battery pack.
The 18650 battery is PCB protected from overcharge and discharge.
With holes machined in the aluminum case, the light is good heat resistant.
Also it's water resistant designed, 3 o-ring seals in the light and with a hoe in bottom to allow water moving out instantly.
In the connection part with battery pack, there is a screwing cap to secure the link.

2 silicone o-rings come with 1 big and 1 small, so it can fit with bike handlebar with different sizes.
Head band is elastic, whcih makes the light can be used as a headlamp.