CE,ISO certified for "Small Wind Turbine with High Reliability". 2.Low start up wind speed,less weight with low torque starting technique applied. 3.The design of blades: The blade casted into molding at one time with balance up to 99%. 4. Amazingly quiet operation with little or no vibration. 5. The turbine tail and yawing part (nylon and fiberglass materials with high strength) processed with reinforced ribs, enhance the reliability and can withstand the typhoon. 6.Carbon brush casted into molding at one time, it can reduce the contact resistance effectively and the lifetime is up to 100000 times 7.Easy installation, no welding needed. one pc in one carton
