Common switch sockets are single control switch, double control switch, delay switch, infrared induction switch, voice switch and so on.
Purchase points: According to the room space lighting, electrical control, electrical, use functions, choose the appropriate switch socket, such as in the corridor lighting control can choose voice switch, make people more convenient; The exhaust fan in the bathroom can choose a delay switch, which can continue to discharge dirty air for several minutes when the switch is turned off.
