Detailed Product Description wind energy turbine 1.CE proved+7 patents 2.high efficiency+small size 3.NO MOQ+wholesale price 4.professional factory wind energy turbine Hummer 500W wind energy turbine with low running noise with reliable protection for over charge , over discharing ,short circuit ,over load etc . Due to its small&light strucutre , it can swiftly start up at low wind speed . It equip with wind-solar hybrid control system , which offer a spare interface for solar panel , without any added fixation , 500w wind energy turbine can connect with solar panel simutaneously . Main technical data for 500W wind energy turbine: Rated power(W) 500 Maximum output powerW 1000 Charging voltage (V) DC 24 Blade quantity 3 Blade material GRP Blade diameterm 2.7 Start-up wind speed (m/s) 3.0 Rated wind speed (m/s) 7.0 Rated rotating rate (r/min) 600 Wind energy utilizing ratio (Cp) 0.48 Generator output Single-phase frequency conversion AC Output AC frequency (Hz) 0~300 Rated charging current (A) 15 The maximum charging current (in a short time )(A) 25 Generator efficiency >0.78 Tower diameter(mm) 7620003 (3pcs) Tower height(m) 6 Generator weight (kg) 6.5 Battery 12V 150Ah/200Ah 2pcs