- ULTRA BRIGHT AND SAFE: The bike rear light features 30 high-efficiency LED lamp beads, delivering up to 85 lumens of brightness. Enjoy enhanced visibility that keeps you safe while riding at any time, day or night. - USER-FRIENDLY WIRELESS CONTROL: Easily operate turn signals and light modes using a wireless remote control. An indicator light on the remote allows you to confirm the current lighting mode without needing to look back. - ENHANCED SAFETY WITH GROUND WARNING LINES: The bike taillights emit two parallel ground warning lines from their wings, creating a virtual cycling lane. This feature helps ensure you remain in a safe zone, significantly improving your riding safety. - AUTOMATIC BRAKE ALERT: When you brake, the rear light automatically activates a fast flashing mode with heightened brightness, signaling to other vehicles. After 13 seconds, it reverts back to your selected light mode, ensuring continuous safety. Use cases: - Ideal for daily commuters who want to enhance their visibility in urban environments. - Perfect for recreational cyclists during evening rides, ensuring they are seen from a distance. - Essential for group rides, as the turn signals and ground warning lines communicate your actions and position to others on the road. Designed for all bicycles, this bike rear light is a crucial safety accessory for every cyclist looking to improve their riding experience.