Detailed Product Description small home wind turbine 1.CE proved+7 patents 2.high efficiency+small size 3.NO MOQ+wholesale price 4.professional factory small home wind turbine Application of Model H3.8-2000W home small wind turbine It can drive air-condition (2 horsepower), pump or other electrical appliances (��2KW). Well used in: Housing Telecommunications Station TV Transfer Station Monitoring Station (military, hydrology, observatory) Water-pumping Station Main technical data Rated power (W) 2000 Maximum output power (W) 3200 Charging voltage (V) DC 120 Blade quantity 3 Rotor blade material GRP Rotor blade diameter (ft.) 12  (3.8m) Start-up wind speed (mph) 7    (3.0m/s) Rated wind speed (mph) 20  (9.0m/s) Rated rotating rate (r/min) 450 Wind energy utilizing ratio (Cp) 0.45 Generator output Frequency conversion AC Rated charging current (A) 16.7 The maximum charging current (in a short time )(A) 28 Output AC frequency (Hz) 0~370 Generator efficiency >0.8 Tower diameter (in.) ?4.5*78.7*0.2 (?114*2000*4 mm) (5pcs) Tower height (ft.) 33  (10m) The weight of generator (lb) 55  (25kg) Suggested Battery (Ah) 150/200