1. Take out of the little plastic isolation which is installed on the end cap to pretect the battery and flashlight.
2. Charge the battery first because it is not in full charge. Until the indicator light turn to green.
3. Hardly press the button to turn it on and lightly press it to change modes.
4. Rotate the head ring of the flashlight to change the shape of light.
Model of Led: T6 Led
Body Material: Alumiun alloy
Focus: Stretching to adjust its focus
Distance: 100 metres
Modes: 5 modes ,Bright / Average / Dim / Strobe / SOS
Net Weight: 240g/8oz
Waterproofing design, but don't deep it into water.