Capacitance as "220V AC Cooling Fan" an important part, may reflect the merits of the motor from the side, the home fans in general the smaller the capacitance value, indicating that the motor starting current is smaller, more energy-efficient, "220V AC Cooling Fan" the relative performance of the motor, the more stable; another larger the rated voltage, capacitance-voltage shock resistance stronger, motor performance will be relatively more stable. "220V AC Cooling Fan" The main components are: AC motor. Its working principle is: energized coil in a magnetic field by the force of the rotation. Form of energy is transformed: the main electrical energy into mechanical energy, and because the coil has a resistance, so that there is an inevitable part of the electrical energy to be converted into heat.