Bright LED Bike Rear Light: This bicycle tail lamp features high brightness LED beads that emit eye-catching red light. Provide effective lighting to remind pedestrians and vehicles during nighttime cycling, providing protection for your ride.Waterproof USB Rechargeable Bike Tail Light: The LED bicycle tail light adopts a rubber switch and a highly sealed lampshade to provide strong waterproof performance, and is not afraid of encountering rainy weather or being splashed by rainwater when riding outdoors.Four Modes: This bicycle riding light has four lighting modes: strong light, slow flash, burst flash, and fast flash. Choose according to different usage needs.Easy to Install: The outdoor riding bike tail lights are simple and sturdy to install, and even on bumpy roads, they will not easily shift or fall off.Outdoor Riding: This bicycle night riding lamp is compact in design and will not affect your cycling experience. USB charging for long-lasting night lighting. Suitable for professional cyclists who enjoy outdoor cycling.