The Cateye Ampp 400S Rechargeable Front Cycle Light offers a balance of safety and convenience with its 400 lumen OptiCube lens and five light modes. This versatile bike light can be adjusted to fit any bike with its FlexTight bracket, and the double-click-to-high function allows for quick adjustments to changing ride conditions. The AMPP400S also features a power switch that acts as low battery indicator, and a modern USB-C charging port.The Ampp 400s can be used as a daytime running light and is IPX4 water resistant so it can be used on rainy days through the winter. FEATURES Rechargeable headlight (400 lm) Excellent side visibility Large power button for easy operation Turns on High mode with double click of power button Up to 60 hours of run time 5 light modes High / Middle / Low Daytime Hyperconstant / Flashing Light mode memory Excellent daytime visibility in Daytime HyperConstant mode Weight : 106 g Mount size : 22 - 35 mmRUNTIMES High mode 400 lumens 2hrs Middle mode 200 lumen...