Lightning output of 1600 lumens helps you see perfectly even in the most difficult conditions Excellent for night rides through dark woods500 charging cycles without noticeable performance lossOption of buying another battery to extend your night adventures Simple tool-free installationSuitable for all handle bar sizes and shapesHelmet mount includedWater resistant Packaging includes: light, helmet mount, battery, battery bag, battery charger (Plug type - C), 2 mounting rubber rings Light Source: 4x CREE LEDLighting output: 1600 lmFunctions: 100%, 75%, 50%, 25%Battery: Li-ion 4400 mAh 8.4VBattery indicator: Green (+75%), blue (+50%), yellow (+25%), red (+5%), flashing red ( <5%)Battery lifetime: 2.2hrs (100%), 2.5hrs (75%), 3.5hrs (50%), 7hrs(25%)Charging time: 3.5-4 hrsBattery charger: Plug type - C; Input - 100-240VAC 50/60Hz 0,5A Max; Output - DC 8,4V 1500 mADimensions: 46*39*39mm (L*W*H) Weight: 356g (including battery)Color: Black