(1) "220V Cooling Fan" loss, high efficiency: because the use of magnet excitation, eliminating the induction motor excitation current generated losses; and DC motor operates in synchronous operation mode, eliminating the transfer frequency induction motor rotor core loss. Both make operating efficiency DC induction motor is much higher than the efficiency of small capacity motors were much higher.
(2) "220V Cooling Fan" speed performance, simple control: Compared with frequency control induction motor speed control DC motor is not only simple, but also has better speed performance.
(3) "220V Cooling Fan" high power factor: Due to the reactive current DC motor excitation magnetic field does not need the grid, so the power factor is much higher than induction motors, DC motors can operate in a power factor, which is a small power motors extremely beneficial. With higher efficiency and power factor only when the motor and the induction motor rated load compared to, but at light load has more advantages.