MACHINED AIRCRAFT ALUMINIUM BODY CORROSION RESISTANT / WATER RESISTANT / SHOCK RESISTANT 130,000 HOURS LIFE FOR LED BULB / RECHARGEABLE BATTERY HYPER BRIGHT LED 3 WATT / 2000 METERS-COVERAGE RANGE FLASH LIGHT WITH USB CHARGING FUNCTION / 1) 3 HOURS CONTINUOUS WORKING 2) 1.5 HOURS CONTINUOUS WORKING 3 & 4) 3 HOURS CONTINUOUS WORKING 2 YEARS WARRANTY