Specifications(5000W) Type: 3 Blade Upwind Rotor Diameter: 6.4 m Start-up Wind Speed: 2.5 m/s (5.6 mph) Cut-in Wind Speed: 3 m/s (6.7 mph) Rated Wind Speed: 10m/s (22.4mph) Rated Power: 5000 Watts Maximum Power: ~ 6000 Watts Cut-Out Wind Speed: 18m/s(40.1mph) Timing manner: automatically adjust the windward angle Overspeed Protection: Auto Furl Temperature Range: -40 to +60 Deg. C (-40 to +140 Deg. F) Generator: Permanent Magnet Alternator Output Form: 240 VDC Nominal