Power is one of the important performance indicators "220V Cooling Fan", disguised reflects the fan performance. I.e., the fan power energy consumed per unit time (power), the unit for W- watts. Just when you care about, "Get the lead out," asks "still capable of rice has," can "eat" the "220V Cooling Fan" tend to have a more robust performance. Power from another angle reflects the fan performance. DC brush less fan on common products usually does not directly indicate power, but marked the rated working voltage and the maximum current can be obtained by multiplying the two numbers "220V Cooling Fan" maximum power at rated voltage.