As for wired smart switches, these need a fundamental idea of home electrics. You’ll want to turn from the power within the fuse box, then take out your outdated switch, detach the wires and fit them into the smart switch. These are only schematic diagrams to clarify about different forms https://wiring-to-switches43852.yomoblog.com/41456514/the-greatest-guide-to-smart-power-point