Instruction
1.Take out of the little plastic which is isolation if the battery was installed into the flashlight.
2.Charge the battery first for 3-4 hours. The indicator of charger blinks red and green or just blinks red when the battery is in charge. The indicator of charger turns to green when the battery is in full charge.
3.Install the battery into the flashlight. Put the positive pole (cathode) into the flashlight first, that means leave the negative pole (anode) touching the end cap.
4.Install the end cap. Hardly press the button to turn it on.
5.Press the button lightly to change the modes.There are 5 modes (Bright-Average-Dim-Strobe-SOS)with this light
6.Zoom the head to change the shape of light.

Specifications
Model of Led: Led
Body Material: Alumiun alloy
Focus: Stretching to adjust its focus
Distance: 100 meters
Modes: 5 modes ,Bright / Average / Dim / Strobe / SOS 
Power supply: 1 x Battery(Included)
Net Weight: 171g/6oz
Length:14cm/5.5inch
Waterproofing design, but don't deep it into water.

Package Includes
2 x LED Flashlight
2 x Battery
2 x Smart Charger