Rated Output: 300W Max Output: 400W Generator: Permanent magnet generator Rated output voltage: 24V Startup wind speed: 2.5m/s(5.6 mph) Cut-in wind speed: 3m/s(6.7 mph) Rated wind speed: 7m/s(15.6mph) 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: 76*2.5 steel tube Tower height: 6m Work temperature: -40ºC~~+60ºC Allocated battery: 12V150AH, 2 pcs Controller: Inverter, controller, charger True Sine Wave