Cycling gets greener when you ride with Cat Eye's innovative Hybrid Solar Headlight! This "green" light's solar cell charges a NiMH battery for up to 6 hours of run time. A back-up alkaline battery has an additional 30 hours of reserve run time. Its super-bright LED provides 400 candlepower for superb visibility, and the OptiCube lens ensures maximum brightness and perfect focus, right where you need it. Choose from flashing or constant modes to illuminate your journey in a truly sustainable way!