Power is one of the important performance indicators "Micro 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" fans tend to have a more robust performance. Power from another angle reflects the fan performance. Common DC brush less "Micro Cooling Fan" on the product usually does not directly indicate the power, but the rated working voltage marked with the maximum current value is multiplied by two to get the maximum power "Micro Cooling Fan" rated voltage.