GIANT Alumbra TL rear light

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 lock 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 - Weight: 17g without mount - 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