Blade diameter 3.5m Rated Rotated speed 50 Rated wind speed 10m/s Rated power 3000W Max voltage 4500w Output voltage 220v Start up wind speed 3(m/s) Operating wind speed 3-30(m/s) Security wind speed 50(m/s) Height of tower 8m Weight of top section 409kg Output controller system charger and inverter Capacity and quantity of battery(reference) 12V100AH 18pcs can supply power for ice box, washer, water pump, tv, lighting, electric fan, charger, air condition. Wooden case packing.