The powerful WhiteLite HP 500 bicycle light offers a light output of 500 Lumen in six 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. Illumination: cree XP-L LED, 500 lm Power: 3.7V 3000mAh Lithium Ion (integrated) Light modes: Hyper: 500>400 lm (70min) High: 400 lm (2.6 hours.) Middle: 220 lm (4 hrs.) Low: 130 lm (8 hrs.) Blinking: 130 lm (50 hrs.) Pulse Blinking: 130/400 lm (10 hrs.) Charging time: 4 hrs. (Micro USB) Material: forged aluminum / Injection molded plastic Mounting: handlebar (ø25.4 - ø33 mm) Additional info: Dual zone refractor lens, Amber side-lighting, Low battery indicator, Compatible with PanoComp X Mount Dimensions: 11.7 x 3.2 x 1.2 cm Weight: 117 g