Fengyuan 1KW Wind Turbine Technical Parameters: Wind rotor diameter (m) 2.8 Blade material and quantity Fiber glass reinforced * 3 Rated power / max power (w) 1000/1400 Rated wind speed (m/s) 10 Rated rotate speed (rpm) 450 Working wind speed (m/s) 3-25m/s Start up wind speed (m/s) 3 Survived wind speed (m/s) 40 Working voltage (v) DC48V AC220V Battery voltage / capcity (v, ah) 12*4=48 / 200 Speed regulation method yawing and electromagnetic Start torque(N/M) 1.5 Stop method, Manual brake Generator style Three phase, permanent magnet Wind turbine weight (kg) 75 Tower height / weight (m/kg) AA85kg/6, AAA358kg/8 PERORMANCE Monthy estimated generator for 6m/s 207.36KWH