"220V Cooling Fan" by DC voltage and electromagnetic induction, the electrical energy into mechanical cooling fan blades so as to drive the rotation, this rotation has become a fan in DC fan. Cooling fan is running, with the case of heat is changed, a slower speeds, "220V Cooling Fan" will have less noise and consumes less energy. In the design, the design of the cooling fan in addition to the previous mentioned universal design. There are also some "220V Cooling Fan" with a number of very special design. Better meet the needs of users through the application of technology and process updates.