The Topeak Tail Lux Rear Bike Light combines powerful illumination with an ultra-compact design to keep you visible and safe in low-light conditions. Featuring a 0.5 W ultra-bright red LED, this light ensures up to 2 km visibility for maximum rearward safety. It offers two lighting modes—50 hours constant and 100 hours blinking—providing flexibility for commutes or night rides. Built from durable injection-molded plastic, the Tail Lux mounts securely on helmets, Topeak bags, or racks using a tool-free silicone strap. Lightweight, efficient, and weather-resistant, it’s the perfect everyday safety light for cyclists who value reliability and style.