Description HOVSCO&';s new battery-powered rear rack tail light uses bright red LEDs and a built-in reflector and mounts directly to your bike rack without wire connection. Attaches easily to all HOVSCO bike racks. Allows you to mount a rear rack on your bike without sacrificing visibility to other cyclists. Feature This lamp is made of durable plastic, sturdy, waterproof, and long-lasting.It&';s very easy to install and use, a nice DIY accessory for your bike.