Product Features:MACHINED AIRCRAFT ALUMINIUM BODYCORROSION RESISTANT/WATER RESISTANT/SHOCK RESISTANT130,000 HOURS LIFE FOR LED BULB4000mAh LITHIUM RECHARGEABLE BATTERYHYPER BRIGHT LED 5 WATT1000 METERS-COVERAGE RANGE FLASH LIGHT2-3 HOURS CONTINUOUS WORKINGUNBREAKABLE GLASS