Designed to integrate seamlessly with compatible Giant and Liv helmets, the Numen Alumbra TL is the slimmest and most lightweight helmet-attachable tail light and features a unique quick magnet mount design for easy on and off as well as a built-in low-power indicator.

• Maximum output to 20 lumens
• ANSI certified lumens and runtime
• IPX4 water resistant
• Power status indicator alerts remaining run-time before powering off
• Light memory mode
• Compatible with Rev Comp, Compel, Roost, Strive, Lanza, Coveta, Rev Liv Comp, Luta, Path and Relay series helmets