This product is an integral structure design, beautiful appearance, waterproof performance is stronger, the product of lining design humanization, with adjustable buckle, comfortable to wear, no pressure, imported chip, long discharge time, high brightness, long distance, strong penetrating power, lithium battery miner lamp working time of 100000 hours, an adequate more than 12 hours of continuous illumination Lamp capacity : 2.5ah Rated voltage:3.7v Charging voltage:4.2v Illumination:2500lx Working current:150ma Charging time:6h Charger ac input:ac100-240v,50-60hz Cap material : ABS