... 4V 4. Bulb life 100000 hours 5. With 4*18650 battery FeaturesCan be fixed on the bicycle, as the ... . Using CREE XM-TL60, Light, lumens, Life of LED can achieve 100,000 hours2. Intelligent control circuits, third ... alloy. CNC machining, anodizing surface treatment6.Combined with 4*18650 batteries. Capacity 4400Mah. Voltage: 8.4v7. Waterproof design, ... :Spare Parts: 1200 Lumen high power cree led headlamp