model uv-2000w rated output 2000w pitch auto adjustable pitch rated wind speed 10m/s cut-in wind speed 2.5m/s working wind speed 2.5-23m/s safety wind speed 50m/s blade number 3 blade material glass fibre reinforced plast......model uv-2000w rated output 2000w pitch auto adjustable pitch rated wind speed 10m/s cut-in wind speed 2.5m/s working wind speed 2.5-23m/s safety wind speed 50m/s blade number 3 blade material glass fibre reinforced plastics rated blade speed 40r/m gear box 1:7 tower height 4.5m control microcomputer system efficiency 38% ---generator--- generator type three-phase permanent magnet construction outer rotor material ndfeb permanent magnets rated speed 250r/m rated voltage 56v tempreture rise 80亷 over load safety 120% insulation f low power wind turbine shanghai uou new energy co ltd 500 - 1000 w low power wind turbine shanghai uou new energy co ltd 5 - 7.5 kw medium power wind turbine shanghai uou new energy co ltd 10 - 15 kw