Number of Blades (P): 3 Blade Material: Fibre-glass epoxy Blade Diameter (ft): 8.52 (m): 2.6 Start-up wind velocity (mph): 6.7 (m/s): 3.0 Operating wind velocity (mph): 6.7 - 60 (m/s): 3.0 - 25 Rated wind velocity (mph): 17.9 (m/s): 8.0 Maximum wind velocity (mph): 90 (m/s): 40 Rated RPM: 400 Speed Regulation: Yaw +auto brake. Generator: Permanent Magnet 3Ph AC Generator Rated Power (W): 300 Maximum Output Power (W): 450 Output Voltage: 12v/24v DC Generator Weight (lbs): 188 (kg): 85 Measurement(CBM): 1.0 CBM Tower Type: Guy wire tower Tower Height (Feet): 19.7 (m): 6.0 Tower Weight (lbs): 93 (kg): 42 Temperature Range: -40C - +40C Life Span: WT 15 Years Waranty: 1 Year