... warranty 5. Our company strength We sell wind turbine ,competitive price,30% high power effiency,aerodynamic brak,fiber glass blades,light ... weigh,start-up wind speed low.Technical dataRated ... m)0.99Start-up wind speed (m/s)1Security wind speed (m/s)45Turbine Type Up-wind TypeYaw modelMechanicalBlade materialFiber glassBlades ...