Kohree Wireless 1W KL2.5LM Portable 3000LUX LED Miner Light Hunting Headlamp for Mining Hunting Fishing Camping Hiking Cycling Waterproof IP65 Wireless mining safety cap light is a environmental-friendly lamp, Battery life;500 cycle time Used in flammable explosive places like coal mine, chemical industry, oil&road transportation Features small size, light weight, long service life, free of maintenance, environmental protection. Rated voltage: 3.7V; Rated capacity: 2.5Ah, LED current: 0.15A (main light) 0.07A (weak light)