... brake protection function Horizontal Axis 300W Wind Turbine Generator 1.Low start up wind speed2.Beutiful,high efficiency,durableCAT-300W Wind Turbine Generator technical data as ... (r/min)375Start up wind speed(m/s)2Working wind speed(m/s)4-25Rated wind speed(m/s)8Security wind speed(m/s ... blades model made in German , Advantage is low start up wind speed,steady rotor speed,improve the utilization of ...