1.Magnetic saturation generator design, 20years designed life. 2.2-2.5m/s start-up wind speed under low torque start-up technique. 3.Independent power supply 4.Blades are casted into molding at one time with balance up to 99%. 5.Bearings import from japan (nsk), long service time (5 years maintenance-free). 6.Low cost and low noise 7.Low cut in wind speed (3m/s) to guarantee the maximum generation at low wind speed. One pc in one plywood