... perfectly applied to the wind solar hybrid system, such as street light.They are perfectly applied to traffic light,Vila, Vessel,Communication ... /115cmBlade material: High strength steel fiber glassBlade amount: 3+3pcsSafe wind speed: 40m/sWeight of complete machine: 20kgWorking temperature : -40 ... case reference:Power curve:Product size:Package: 400W VAWT street light wind turbine with 400 RPM - C