LED Headlight Brand:Yijiaming Model:YJM-4925 Power supply:4400mAh lithium battery Light source: 3W high-power LED (1)two tranches of strong and weak light, touch-button switches. (2)intelligent charge management, over-charge over-discharge protection. (3)light continuous illumination 15-20 hours, longer low-light illumination. The lighting levels alsocanbe adjusted according to the user's need.