Blade diameter 1.6m Rated Rotated speed 200 Rated wind speed 8m/s Rated power 300W Max voltage 450w Output voltage 12/24v Start up wind speed 2(m/s) Operating wind speed 3-35(m/s) Security wind speed 50(m/s) Height of tower 6m Weight of top section 102kg Output controller system charger and inverter Capacity and quantity of battery(reference) 12V100AH 2pcs can supply power for lighting, electric fan, charger. Wodden case packing.