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Anonymous users2024-01-23There is no need for voltage transformation, the motor directly uses 220 volt AC, if it is an LED illuminator, the lamp comes with a step-down drive module
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Anonymous users2024-01-22Without changing the voltage, the general motor uses a 220V capacitor single-phase motor.
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Anonymous users2024-01-21The voltage of household ventilation fans is generally 220 AC, and there is no voltage transformation.
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Anonymous users2024-01-20There is no voltage change, just with speed regulation.
Use thyristor speed regulation.
If there is a wall between the two spaces, it will generally not have an effect, unless the space is small and the distance is short, the space is confined and the power of the range hood or ventilation fan is particularly large, then it is possible to affect each other.
Generally speaking, it is relatively rare to install a range hood and a ventilation fan together in the kitchen, just install a range hood, and there is no need to install a ventilation fan.
2 possibilities:
One is that the zero line of the line is broken. >>>More
In fact, there is no difference, the only difference is that the fan is blowing at you, and the ventilation fan is blowing outside (pumping the wind).
1. The kitchen ventilation fan should be placed horizontally. The ventilation fan should be placed horizontally, pay attention to not tilt when using, and check whether the power supply of the socket is consistent with the parameters on the fan nameplate before use. >>>More