household range hood: core application field, suitable for top suction, side suction, European style, Chinese style and other types of household range hood, to achieve power switch, fan three speed control, lighting, delay shutdown and other functional control, stable and reliable, strong adaptability. Kitchen electricity production and after-sales maintenance: as a standardized general control component, it is widely used in the original production of range hoods, and is also suitable for after-sales maintenance and replacement of household appliances, with high compatibility and convenient installation.