Features: With 4 lighting modes, including high brightness, medium brightness, low brightness and flashing mode. Clear lighting brightness, safe for night cycling. With brightness reaching up to 1200 lumens. IPX 6 water resistance. Light works only when the USB cable is connected, no need to buy extra batteries, economical and environmentally friendly. Quick-release rubber loop, easy to install the light on your bicycle. Mini sized and ultra lightweight, great choice for cycling enthusiasts.