Features Light Warnings: The LED bike tail light provides high-brightness illumination to alert drivers behind you. The bright light is designed to be visible without being dazzling, enhancing safety and awareness. Waterproof Resistant: Designed with a waterproof construction, this rear bike light withstands heavy rain and splashes, ensuring reliable performance in wet conditions. Quality Brightness: Utilizing COB light technology, this bike tail light delivers clear and wide visibility for improved road safety. 4 Lighting Mode Options: Equipped with a one-touch switch, the light offers four modes: High brightness, Low brightness, Slow flashing, and Fast flashing, allowing customization based on your needs. Riding Safety: The tail light emits a wide-angle, highly visible beam that can be seen from a distance, helping to prevent accidents and increase visibility in low-light conditions. Note: 1. Actual color may vary slightly due to lighting effects. 2. Allow 1–3 cm variation due to manual measurement. Mode: 4 Modes Size: 7 x 2 x 2.2 cm Weight: 29 g Battery: 330 mAh polymer battery