The powerful CUBICUBI 850 modular bike light offers a light output of 850 Lumen in five stages and an integrated 3000mAh battery with USB charging. The dual-zone refractor lens design provides a bright main beam light that is aimed to avoid glare from pedestrians and oncoming traffic, while the weaker wide-angle illumination enhances road safety. The battery can be used as a power bank to recharge other devices. The supplied handlebar mount also allows attachment for bike computer (Topeak, Garmin), RideCase phone case, light, CubiCubi backup battery, GoPro Session cameras and more. Illumination: cree® XLamp® XHP50.2 Power: 3.7V 3000mAh Lithium Ion (integrated) Lighting modes: 850 Lumens (High) / 2.1 hr. 450 Lumens (Middle) / 3 hrs.200 Lumens (Low) / 7.5 hours.70 Lumens (Steady) / 17 hrs.70 Lumens (Blinking) / 30 hrs. Charging time: 4-6 hours (Micro USB) Material: Forged aluminum / Injection molded polymer Waterproof: IPX 6 Mounting: handlebar (ø25.4 - ø31.8 mm) Additional info: Dual zone refractor lens, Low battery indicator Dimensions: 10.4 x 3.8 x 3.8 cm (light+PowerPack) Weight: 124 g Art.No.: TCB-850