1. Enhanced Visibility and Safety: Equip your bicycle with the handlebar lights, featuring an intelligent brake sensor that automatically adjusts brightness when braking, ensuring high visibility and safety during night rides. 2. Waterproof and Durable: With an IPX6 waterproof rating, these bike lights are designed to withstand adverse weather conditions, making them suitable for outdoor cycling adventures. 3. Versatile Lighting Modes: Choose from 5 different lighting modes to suit your environment and battery life needs, enhancing flexibility and usability in various lighting conditions. 4. Name: R0 traffic light with the same frequency 5. Waterproof Level: IPX 6 6. Host built-in battery: 3.7V 250 mAh polymer battery 7. Battery life: about 6-40 hours 8. Charging input: 5V-2A USB Type-C charging 9. Working environment temperature: -10°C-60°C 10. Working environment humidity: 80% 11. Advantages: same frequency + linkage mode/brake sensing/automatic sleep/vibration self-start/5 installation methods 12. Colour: Black 13. Material: PC+ABS 14. Package Contents: 2 x Handlebar Lights, 1 x Charging cable, 1 x Wrench. Only the above package content, other products are not included. 15. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.