The Exposure Race Mk17 Light, a super lightweight light packing 2600 measured lumens, is the ideal solution for XC racing or weight-conscious gravellers and packers. The RACE does not compromise on technology in this sleek unit, REFLEX++ automatically adjusts output so this featherweight has crossover appeal for those who also have a rural commute or even a lightweight pack ride.Exposure Race Mk17 Light Highlights2 - 36 Hours Runtime1700 (Reflex 2600) Lumens186g Weight