Equipped with advanced sensors that automatically adjust brightness based on ambient light conditions for optimal visibility during day and night rides. Rated at IPX5, ensuring functionality in adverse weather conditions, making it suitable for rain or shine. PC body material guarantees and resistance to impact, ideal for rugged mountain or road biking adventures. Supports 1 to 5 dimmer files, allowing customization of operation according to specific needs. Easy to mount on the handlebar with all necessary fittings included for quick setup. The BENGGUO tail light is an essential accessory for any , enhancing safety with its smart brightness adjustment feature. Its robust design withstands weather conditions, ensuring reliable performance. The customizable dimming options cater to individual preferences, while the straightforward installation process makes it user-friendly. Color: Black & Red Material: Aluminum PC Package Contents: 1 * taillight 1 *seat rail bracket 1 * charging cable 1 * seat post bracket 1 * strap 1 * data cable 1 * spacer Only the above package content, other products are not included. 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.