cross flow impeller 1.small size,easy to installation 2.low noise,less vibration 3.reliable ... materials, light weight, large air volume, low noise, high strength, low vibration, high Wen Jia, long life advantages.The perspective of cross ... small size of the design, particularly suitable for light, thin, small products.JE-050A: 110 / 220V 40 / 42W, blade diameter 50MM, length 42CM:. high quality ...