The Specialized Flux 800 Headlight is designed to be used as helmet mounted light so you can still get in after work laps on your local trails even in the middle of winter. Having a light that goes where you look makes the Flux 800 ideal for off-road riding. Although designed for mountain biking the Flux 800 can also be mounted to your handlebars making it a versatile light for all kinds of riding. The dual Cree LEDs under dedicated wide & spot optics, put up to 800 lumens exactly where you need them. Features Sculpted double-beam pattern puts light where you need it & maximizes every lumen. Cree XPG2 & XPL LEDs Highly adjustable helmet mount included. (Handlebar mount sold separately. SKU is 49118-9600.) Extra-bright side lights to give you 180-degree visibility. USB (Universal Serial Bus) rechargeable 2600m Ah Li-ion internal battery. 300 to 800 lumens LED output. 90% fast charge in 1.5 hours with full charge in 3 hours. Four operating modes: Steady High Mode (800 lumens), Steady Low Spot Mode (300 lumens), Steady Low Wide Mode (300 lumens), & Daytime Flash Mode (400 lumens). Extra-long press-&-hold to lockout light for traveling. Tested & approved for the following Specialized helmet models: Ambush, Ambush Comp, Tactic, Prevail 2, Propero