Power: 3KW Rotor diameter: 4.5m Blades quantity: 3 pcs Blades material: FRP (composite material) Rated speed: 260r/min Rated output power: 3000W Max output power: 4500W Output voltage: DC216V/AC220V Start wind speed:3m/s Rated wind speed:10m/s Working wind speed: 3-25m/s Security wind speed: 40m/s Speed regulation: yaw& magnetic resistance CAN SUPPLY POWER FOR: Air-condition. Refrigerator water pump. electric cooker.TV.washer. Illumine. Fanner. Charge