1 X 18350 or 1 X 18650 Li-ion via the extension tube (excluded)
Notice: The above appropriate parameters are lab-tested by using a Samsung INR 18650 35E and a 3.7V/900mAh 18350 Li-ion battery, it may vary due to the difference of environments and batteries. *The runtime on High is accumulated due to the over-heat protection setting.
Warning: This flashlight belongs to Class 3B device, it's forbidden to shoot directly into eyes, and avoid direct eye exposed to the light.
