It is always important to choose a spa machine when opening a spa. Now there are basically three kinds in China. One is from Taiwan Province Province, saying that it is German technology, but it is actually imitated by Taiwan Province Province. The quality is average, better than that made in China, but the noise is relatively large and there are fewer bubbles. The basic power is 500W W, which is made in China, but it is generally sold in Hong Kong. In fact, it is made in China. Both in Guangdong and Fujian, the motor is not good. The real German original is more powerful, with the function of heating ozone and low noise. The main reason is the long life of the motor. It is best to open a spa in Germany. You get what you pay. I hope it helps you.