The compact Nano60 rear light delivers powerful visibility in a tiny, lightweight package. Featuring the latest OptiCube™ lens technology, it's bright enough for daytime use and slim enough to disappear on your bike. The included SP-14-RA bracket fits modern aero seatposts, and Snap System™ compatibility makes it easy to mount wherever you need it. Features Compact and lightweight design. OptiCube™ lens technology for daytime visibility. USB-C rechargeable Lithium-ion Polymer battery. Six light modes including Daytime HyperFlash options. Mode memory and Battery Auto Save function. Snap System™ compatible for multiple mounting options. SP-14-RA bracket fits aero seatposts up to 130 mm circumference. Light source: 1 LED (60 lumens). Battery type: Rechargeable Lithium-ion Polymer. Recharge method: USB-C (cable not included). Light modes: High / Low / Flashing / Group Ride / Daytime HyperFlash 1 / Daytime HyperFlash 2. Mounting bracket: SP-14-RA (fits aero seatposts up to 130 mm). Additional features: Low battery indicator, Mode memory, Battery Auto Save. Mounting system: Snap System™ compatible.