"Product Information Model: 5kw H6.4-5kw Wind turbine features high efficiency and low rated wind speed introducing several patented technologies and some special materials. All the off-grid wind generators are matched with wind-solar hybrid inverter controller, which can connect solar panel within 2500w simultaneously. Please contact us for the detail The off-grid wind turbine is matched with 20pcs 12VDC batteries in series, and on-grid system can connect to state grid. Application Well used in: à Housing à Telecommunications Station à TV Transfer Station à Monitoring Station (military, hydrology, observatory) à Water-pumping Station Technical Parameter Rated power(W) 5000 Maximum output powerW 7500 Charging voltage (V) DC 240V Blade quantity 3 Rotor blade material GRP Rotor blade diameterm Ã6.4 Start-up wind speed (m/s) 2.5 Rated wind speed (m/s) 10 Rated rotating rate (r/min) 240 Wind energy utilizing ratio (Cp) 0.4 Generator output single-phase frequency conversion AC Rated charging current (A) 20 The maximum charging current (in a short time )(A) 32 output AC frequency (Hz) 0~360 Generator efficiency >0.8 Free standing tower diameter(mm) $495Ã$185Ã120002pcs Guy tower diameter(mm) $220Ã3000Ã6 (4pcs) Tower height(m) 12m The weight of generator(kg) 147kg Battery 12V 150Ah/200Ah 20pcs "