... Blades: Fibre glass expoxyCut-in wind speed: 3m/sWorking wind speed: 3-25m/sSurvival wind speed: 50m/sRated wind speed: 10m/sRated rotate speed: 280r/minRated output power: ... can be special requested;3.Ce,ccc,iso approved;4. For on-grid working system data, pls contract with us. ... blades rotor diameter 4m, 3.8m, 3.2m for different wind place. For output power curve, pls contact with us!http://www ...