EC axial fan is a kind of low power consumption and environmental selection for end products which only accept AC voltage input, it is electronically transferred providing the efficiency of DC fan type with simply connecting to an AC power supply, which can apply for voltage range from 110V to 240V, the sizes we can make from 60x60x25mm to 172x150x51mm, they are widely used in car battery charger points, commercial refrigerators, freezers, telecom cabinets, severs and medical equipment...etc.