The Dash 350 is the next generation of bicycle lighting engineered for cyclists 350 lumens of intense light output, powered by a Cree X-Lamp LED New Enhanced Cycling Optics achieves an extra wide beam and distant throw 7 lighting modes to keep you safe, night and day. Night modes: High, Medium, Low, and SteadyPulse. Day Modes: Quad DRL steady, Quad DRL flashing, and Quad DRL with Main LED Daylightning Micro USB rechargeable internal Li-ion battery Water resistant design for all riding conditions Side illumination ports for added visibility and safety New Versatite flexible handlebar mount fits most handlebars, including aero bars 1:15 to 55 hour run time Charge time: 3 hours Weight: 74gCygolite