Mssugar Rear Bike Lights Xlite 100 Usb Rechargeable Tail Light Automatic Braking Sensing Led Light Smart Rear Light Ipx6 Waterproof Night Warning Cycling Bicy

INTELLIGENT LIGHT SENSE:During the day, it is automatically turned off and riding at night is automatically turned on. In order to avoid the influence of car light at night, it turns off automatically after 30 seconds of being irradiated with a strong light.BRAKE SENSING LIGHT: Not only the brake mode is sensitive,but it also will automatically switch the brake mode, prompting attention, improve safetyLED LIGHTCOB LED light source is bright but not glaring, so you can ride safely and securelyIPX6 WATERPROOF GRADE: Prevent water intrusion. You will keep using it even if heavy rain falls.EASY TO INSTALL: No tools needed installation, easy to install and disassemble, fits most road and mountain bikes.