Light source: LED+COB Colour: Black Power supply: 1*18650 lithium battery(Built-in) Lighting modes: 8 modes Weight: 180g Lighting time: 3-5 hours.(Strong light) 5-8 hours(Low light) Charging time:3-5 Hours Charging method: USB direct fee Waterproof :Life waterproof, can't be put into water Material: High-strength ABS plastic Purpose: rock climbing camping, mountaineering patrol construction, wa