... High power efficiency 3.electric yaw system 4.off-grid and on-grid system 5.CE certificate wind energy street light ... industrical devices,adopting high temperature,cold,wet and so on conditions.9,Control:with battery voltage,controller temperature,charge ... environmentalprotection.11,Installation,operation,maintenance easy,convenient.Our Advantages1.Focus on R & D and manufature of small wind turbines2. ...