Hf2.2-200w .Blade diameter (m): 2.2 .Rated rotated speed(r/min): 400 Rated speed (m/s): 8 .Rated power: 200w Max power: 350w Output voltage (v): 24/12 Start up wind speed (m/s): 3 Work speed (m/s): 3-25 Security wind speed(m/s):50 High of tower (m): 6 Top weight except tower: 45kg Tower steel tube model (mm): 60 .Speed regulation: leaning tail and electric brake Life span:20-25 years; Warranty:1 year Capacity and quantity of battery: 12v100ah 2 pcs Can supply power for: color tv sets, electric fans, lighting, charge 93kg, 0.37cmb