Numbers of blade(P): 3 Materials of blade: glass fiber Rotor diameter(m): 10.0 Start-up wind speed(m/s): 2 Rated wind speed(m/s): 12 Security wind speed(m/s): 45 Rated speed(rotate/minute): 90 Max. wind speed(m/s): 65 Wind energy ratio(%): 0.42 Generator: Permanent magnetic generator Generator rated power(W): 20000 Max.output power(W): 25000 Output voltage(V): 240VDC/360VDC Timing manner: Automatically adjust the windward angle Overspeed Protection: AutoFurl Protection: AutoFurl Temperature Range: -40 to +60 Deg. C Altitude of tower(m):18/11.5 Charging control: Automatic Power generation of years(kwh):50000 Inverter power supply:Square wave Battery: 12v200AH X80pcs Generator: 133*106*141cm Blade:489*41*69cm Tower: (600*50*50cm)*3 Inverter:95*71*140cm Controller: 70*60*91cm False ogive:88*85*64cm Accessories: 106*54*47cm