"24V DC Cooling Fan" works as follows: 40-watt electric motor with the base of the 33 liters of air per second suction fan base inside the accelerator through the cyclone, the maximum air velocity is increased about 16-fold via internal "24V DC Cooling Fan" fan head annular lip surround which surrounds the force driving the fan head followed them into the air near the fan head, and blow out at high speed. No leaf fan the biggest difference is that it is no fan of the traditional "leaf"! No Yefeng no "24V DC Cooling Fan" style fan jet engines and automotive use in turbo technology, inhaling air through the suction hole at the bottom edge of the ring hidden inside an impeller put the air in a circular spray trajectory, eventually forming an uninterrupted stream of cold air.