Model:BF-H-500 Generator Type: Direct drive permanent magnet VAWT, 3 phase AC Power(w):500 Rated wind speed(m/s):9-11 Rotor diameter(m):1.3 Start-up wind speed(m/s):2.2 Height of blade(m):1.6 Range of working wind speed(m/s):2.2-25 Material of blades and numbers:Glass Fiber Reinforced Plastic/5 Survival wind speed(m/s):50 Rated rotor speed(m/s):150r/min Output Voltage:AC24/48V Speed regulation method:Electromagnetic control Stop method:Electromagnetic brake Wind energy utilized coeffeicent:30%-40% Sweep wind area:1.32665 Range of working temperature:-45℃-60℃ Suggested supporting battery:4pcs12v80ah Top weight (kg):70 Tower type and height:Guy cable tower/8m