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.

Features
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 and Luta series helmets

Specifications
Size: 54x13x27mm
Colors: Black
Max Output: 20 lumens
HL Runtime: High 2.5hrs (20LM), Low 6hrs (10LM), High Flash 7hrs (20LM), Low Flash 24hrs (5LM)
Battery: Li-Ion polymer battery (250mAh)
Water resistant: IPX4

Mfr Claimed Weight
17g without mount