Product information Model: hummer wind turbine 2kw H-3.8-2kw wind turbine which features high efficiency and low rated wind speed introducing several patented technologies and some special materials. Application Well used in: Housing Telecommunications station Tv transfer station Monitoring station (military, hydrology, observatory) Water-pumping station Technical parameter Rated power(w) 2000 Maximum output power (w) 3200 Charging voltage (v) dc 120v Blade quantity 3 Rotor blade material grp Rotor blade diameter(m) 3.8 Start-up wind speed (m/s) 3.0 Rated wind speed (m/s) 9.0 Rated rotating rate (r/min) 450 Wind energy utilizing ratio (cp) 0.45 Generator output single-phase Frequency conversion ac Rated charging current (a) 15 The maximum charging current (in a short time )(a) 28 Output ac frequency (hz) 0-370 Generator efficiency >0.8 Tower diameter(mm)114*2000*5 Tower height(m) 10 The weight of generator(kg) 25 Battery 12v 150ah/200ah 10pcs Plywood container.