Unbranded Usb Rechargeable Led Bike Rear Light Waterproof Smart Brake Light Sensor 5 Sport Modes Led Cyclist Rear Light Strobe Light Safety Warning(black)

Smart Bike Lights: The bike taillights feature a high-sensitivity accelerometer that automatically switches to brake light mode when it slows down and illuminates the warning vehicle.Energy-saving, waterproof: Automatically turns off after 10 seconds of parking to save battery. It is IP64 rated, waterproof and dustproof, ensuring safe use in heavy rain.One button to switch between five modes: You can switch the different modes according to your needs and different occasions to get the best lighting experience.USB charging: The bike light is equipped with its own USB charging cable for quick and easy charging. Once fully charged, it can last about 20 hours.Lightweight and easy to install, a versatile light: the 29g weight can also be used as a safety light, it can be installed on helmets, skateboards, backpacks, backpacks, etc.