... wall switch white,bule,yellow,plum& black wall switch for lights and appliances scene control wall switch Working system: PLC system/ X10 system, receive and ... can be designed as your requirement2.bidirectional communicationThis touch switch can work independently, or work in the PLC ... home is here.)(1)After you choose this touch switch, together with TDX6438+ Wireless timing transceiver, then you ...