The ViZ150 LED bike light offers exceptional visibility with its patented OptiCube™ lens technology and Daytime Hyperflash mode. With up to 150 Lumens of light output, it ensures you'll be seen from any angle. The included SP-15 seatpost bracket fits contemporary aero seatposts while the Snap square base allows the light to be positioned horizontally or vertically. The light includes four lighting modes (constant, flashing, group ride, and Daytime Hyperflash) and a Micro USB cable to recharge in just 3 hours.