Fits saddle rails as well as round seatposts, and compatible with some aero seatposts of similar size

With its horizontally-mounted elongated light strip, the RAVEMEN CL100 tail light delivers a 100-lumen, 300° wide-angle beam that ensures you're clearly visible from multiple directions on the road. Featuring an integrated rail-mounted design, the CL100 tucks neatly beneath the saddle, aligning with the bike for a clean, streamlined look. Weighing only 30g, it features an ultra-compact, lightweight design that blends seamlessly into your bike setup without adding any bulk. It also includes smart brake detection, auto on/off, up to 160 hours of battery life, and IPX6 water resistance—making it a compact yet powerful safety solution for any ride.