Rated Output: 500W Max Output: 700W Generator: Permanent magnet generator Rated output voltage: 24V Startup wind speed: 2 m/s (5.6mph) Cut-in wind speed: 3 m/s (6.7 mph) Rated wind speed:8 m/s (17.9 mph) Number of blade: 3 Material of blade: Glass fiber reinforced plastic Blade Diameter: 2.5m Speed protection: Automatic Leaned Rated Rotating Speed: 400r/min Wind Energy Transforming Rate: 0.40Cp Pole Diameter: 89*3.25 Steel Tube Tower height: 6m Work temperature: -40ºC~~+60ºC Allocated battery: 12V150AH, 3pcs Controller: Inverter, controller, charger