Detailed Product Description home wind turbine 1.CE proved+7 patents 2.high efficiency+small size 3.NO MOQ+wholesale price 4.professional factory   home wind turbine Main technical data Rated power (W) 500 Maximum output power (W) 1000 Charging voltage (V) DC 24 Blade quantity 3 Blade material GRP Blade diameter (ft.) 9   (2.7m) Start-up wind speed (mph) 7   (3.0m/s) Rated wind speed (mph) 16 (7.0m/s) Rated rotating rate  (r/min) 600 Wind energy utilizing ratio (Cp) 0.48 Generator output Frequency conversion AC Output AC frequency (Hz) 0~300 Rated charging current (A) 16.7 The maximum charging current (in a short time)(A) 25 Generator efficiency >0.78 Tower diameter (in.) 3.0*78.7*0.1  (76*2000*3 mm)(3pcs) Tower height (ft.) 20  (6m) Generator weight (lb) 14  (6.5kg) Suggested Battery (Ah) 120/150