Product features: 1.CREE LED, high brightness, high efficiency and long lifetime. 2.Aviation level aluminum alloy casing, shock & impact resistant. 3.Deep vacuum electroplating aluminum reflector, the light coverage distance can reach more than 150 meters. 4.It has the protection against overcharge, over-discharge and short circuit. 5.IP68, corrosion-proof WF2. 6.It can be held on hand or carried on shoulder. Explosion-proof mark: Ex dIICT6 Gb Waterproof level: IP68 Corrosion-proof level: WF2 Life time: Battery: 1000cycles Light source: 100000h Working hours: Weak: 14h Strong: 8h Dimensions Length: 146mm Diameter of lamp head: 69mm Weight: 980g