Specialized's Flux Expert Headlight delivers a super-wide, super-bright beam that puts light where you need it most. See and be seen thanks to the whopping 1200 lumen output. The 180-degree beam supplies excellent peripheral vision and the downward facing reflector lights up objects 1/3 of a mile away without blinding oncoming traffic. Four modes: Full power, Battery Saver, Surge glow, and Flash let you adapt the Flux for your ride. And, the Flux Expert features an illuminated handlebar remote that lets you switch between high and low beam for each mode.This excellent light features a quick-release, all-metal mount that centers the light in front of the stem.