The AMPP400S prioritizes safety with maximum side visibility, USB-C charging, and a secure adjustable FlexTight bracket. The compact Nano60, featuring OptiCube lens technology, ensures daytime visibility while being small enough to remain unobtrusive on your bike. The included SP-14-RA bracket is compatible with modern aero seatposts, and Snap System compatibility allows for versatile mounting options, including saddle rail and rear rack brackets. Rechargeable headlight (400 lm) with wide beam and OptiCube lens technology, excellent side visibility, and a compact body with 1 LED (60 lm) for long rear beam projection and daytime visibility Lithium-ion Polymer rechargeable battery, USB-C rechargeable (USB-C cable not included), low battery indicator, and Battery Auto Save feature Mode memory function, five light modes (High / Middle / Low / Daytime HyperConstant / Flashing) for the headlight, and six light modes (High / Low / Flashing / Group Ride / Daytime HyperFlash 1 / Daytime HyperFlash 2) for the rear light Large power button for easy operation, turns on High mode with a double-click of the power button, and sturdy FlexTight bracket New seat post bracket SP-14-RA fitting aero seat posts up to 130mm outer circumference, Snap System compatibility, and optional helmet mount and center fork bracket Item Specifications Lumens Rear 60 Lumens Front 400 Recharge Type USB Battery Rechargeable