Can smart lights be installed in ordinary wiring at home?

Smart lights can be installed in ordinary wires at home. According to relevant investigation data, ordinary wiring only needs to replace the traditional mechanical switch in the room to be rebuilt with an intelligent switch, connect the double control wires in the double control switch slot together, keep the complete path of the lamp circuit, and pair one or more wireless switches to realize double control and multi-control of lighting. Or keep the original dual-control and multi-control wiring switch and keep the original dual-control switch normally open.