As for wired smart switches, these require a standard understanding of home electrics. You’ll need to turn from the power in the fuse box, then remove your previous switch, detach the wires and in good shape them towards the smart switch. DIYers must not, however, consider managing new wiring them https://smartlightswitches19771.thezenweb.com/the-best-side-of-safe-electrical-wiring-72856116