Power supply with 12cm large windmill "220V Cooling Fan", as improved hydraulic bearing structure, played a good quiet performance, while improving the ventilation cooling, improve the cooling effect. "220V Cooling Fan" has joined a unique dust-proof characteristics, the characteristics obtained patent certification, can guarantee an ideal cooling power, but also to maximize avoid external dust and other impurities from entering the power, affecting its safe operation. At the same time, the temperature inside the power supply circuit while self, according to the operating temperature of the core elements of real-time adjustment "220V Cooling Fan" of speed, intelligence reached to balance cooling and quiet, to further improve the user's DIY environment.