See what youve been missing with the new Flux™ 900 headlight. It uses two different LEDs under dedicated optics which combine to make the perfect beam of light. In simpler terms though it means that you can see both far & wide so youll be maximizing every lumen of output. Sculpted beam pattern puts light where you need it & maximizes every lumen. Combining narrow & wide optics puts light where you need it at any speed. Quick release bar mount works on bars from 25.4 to 31.8mm Mounting system centres light in front above or below the stem with a long reach to work around most computer mounts & shifter/brake cables Wide side lights to give you 180-degree visibility to other cyclists & motorists. USB (Universal Serial Bus) rechargeable 3350m Ah Li-Ion internal battery. 300 to 900 Lumens LED output. 1.5- to 30-hour runtimes 90% fast charge in 1.5 hours with full charge in 3 hours Three operating modes: Steady High Mode 900 Lumens Steady Low Mode 300 Lumens Steady/ Flash Mode 300 Lumens Daytime Flash Mode 300 Lumens