LED Head Lamp Light Color: White, Sunlight Power Supply: 2000mAh Lithium Battery Light source option: 9,12 LED LED HeadlampBrand: HENGDAModel: LD-4921Power Supply: Rechargeable lithium battery, the capacity is 2000mAh.Light Source: 9,12 LEDIt has two steps, strong light and weak light.Continuous Illumination: Strong light 15-20 hours. LED Head light