Bike Tail Lights Smart Bike Indicators with 6 Steady Flash Modes

AUTOMATIC MODE CHANGE：6 light mode options: Steady light, Slow Flash, Fast Flash,Rhythm flash, Breathing Flash,Eco flash.With brake sensor inside, Bike tail light will turn on automaticlly riding in low brightness and turn off in high brightness,which could make you a safer cycling.
WATERPROOF BICYCLE TAIL LIGHT: The taillight is made of IPX6 rated water resistant material to ensure a safe use in heavy rain.Equipped with high quality LED,It can provide super brightness during the day and night, and it can perfectly ensure your safety even in heavy rain and fog weather.
NO BATTERIES REQUIRED: Built in USB charg e port for this bike rear light (USB cable included) and supports multiple charging methods. 2 Hours Charging =17 to 54 Hours Working.
MULTIFUNCTIONAL SAFETY LIGHT: Easy to install. Lightweight and durable bike tail light that can be mounted on all bikes,used as bicycle indicator, kids bike lights, dog light, etc.
WARRANTY: You can contact us for any problem, and we will try our best to solve it within 24 hours. We promise to replace damaged parts or refund in time