High Brightness Beads This bicycle taillight uses premium LED beads with a brightness of up to 30 lumens. The light is eye catching for pedestrians and vehicles, helping to remind others and improve safety during night rides. It supports smooth cycling in low light. Five Lighting Modes USB charged rear lamp with five modes: left turn signal, right turn signal, yellow bright lights, red bright lights, and all flashing. Simple, efficient operation that adapts to different cycling conditions and road scenarios. Remote Control Includes a wireless remote control for on-the-fly light adjustment while riding. Use the remote to switch to the appropriate mode according to the situation. Easy to use, convenient and practical. Premium Material and Design Durable and sturdy, yet compact and lightweight. Weather resistant and not afraid of rain. Premium beads offer long life. Detachable design allows use as a single tail lamp or in combination with other configurations. Suitable for a variety of occasions. 2-3 Use Scenarios - Night urban commuting: use left or right turn signals to communicate intentions to other road users, complemented by yellow or red bright lighting for visibility. - Riding in rain or low visibility: rely on the bright standard modes to stay conspicuous and safe, with weather resilience to weather conditions. - Flexible setups for group rides or multiple bikes: detach or combine as needed, with the remote control enabling quick adjustments without stopping.