"Micro Cooling Fan" of course, is the wind blowing out, the stronger the better, because the fan blowing out, the stronger the wind, the air flows faster, the first test of the fan wind when purchasing. The more heat can accelerate the circulation of heat away quickly determine the method used to blow directly see the hand feel of the wind. Followed by visual method, when a strong fan rotation, "Micro Cooling Fan" is stationary blades should look, should see signs of rotation. Another strong fan speed is to determine the most important basis for the faster turn, the stronger the wind, but the market's products are mostly not marked or labeled specifications of the fan is not real, so it is best to see the "Micro Cooling Fan" in power consumption can remove the fan, the fan opposite labeled brand, model, voltage, etc., generally the wind is strong enough fan power consumption at 0.9 watts or more, such as the lack of this standard do not buy.