Blade diameter 2.5m Rated Rotated speed 50 Rated wind speed 10m/s Rated power 1000W Max voltage 1500w Output voltage 24V/48v Start up wind speed 2.5(m/s) Operating wind speed 3-30(m/s) Security wind speed 50(m/s) Height of tower 8m Weight of top section 170/160kg Output controller system charger and inverter Capacity and quantity of battery(reference) 12V100AH 4pcs can supply power for ice box, washer, water pump, tv, lighting, electric fan, charger. wooden case packing.