"220V Cooling Fan" all the core components such as: IC power tubes used in all major brands in Europe and America, Japan NMB bearings nuclear double ball bearing life up to 70,000 hours, each of the components are the same standards and Taiwanese brands fan factory Our policy is: military standards, civilians prices, to ensure customers the best price of "220V Cooling Fan"; for waterproof fan, we use innovative goods into the hermetic encapsulation resin, and crossing the membrane process for the same price, determined is not the same quality, our waterproof products can work underwater 20 meters water pressure, we "220V Cooling Fan" is particularly outstanding performance in oil, corrosive environments.