1. adjustable two speed cooling motor 2. 245w, 4/6pole, two speed 3. CCC, CE, UL ... certificates 4. much export experience Features 1, with a hard mechanical properties, good stability, 2 ... high efficiency, speed control process no additional loss;2, application scope, and can be used in ... controller fit, speed rate is not more than 2.5 %,d our factory with precise control, ...