... housing. The fan is driven by an singla phase external rotor motor,so it has compact construction and light in weight characteristics. The fan speed could be adjusted by voltage controller.It is designed with low noise, a long service life, and easy to
... housing. The fan is driven by an singla phase external rotor motor,so it has compact construction and light in weight characteristics. The fan speed could be adjusted by voltage controller.It is designed with low noise, a long service life, and easy to more
