Before you attempt to fix a faulty light switch, make sure you understand the basics of light switch wiring. Being a smart homeowner ... and the diagrams below explain how each type works.

Older homes may not feature a neutral wire, so you'll need to buy a specific smart light switch that doesn't require one. The UK standard for wire colors changed in 2004. After that year ...

a neutral wire will generally be the white wire mixed in the wiring behind your light switch. These are fundamental to a smart light switch, as a neutral wire continues to deliver a small amount ...

Simply wire it into your existing light switch wiring (no neutral wire required), adding some smart tech to non-smart light bulbs, like dimmable LED and CFL bulbs. There are plenty of options to ...

Key specs: Compatible with Alexa, Google Home, and SmartThings, 2.4GHz Wi-Fi, no hub required, neutral wire required, 10 amps, 120 volts The TREATLIFE Single Pole Smart Light Switch stands out ...

An LED light ... wired switch with a Diva smart dimmer or Claro smart switch, and the existing mechanical switch (or switches) will continue to work as expected. (There is some extra wiring ...

The iotty E1 single gang and E2 dual gang are stylish and capable Wi-Fi Smart light switches ... and modern ‘switch-first’ wiring with a neutral wire in the light switch socket.

The GE Cync 3-Wire Smart Switch brings support for voice commands to traditional lighting fixtures and doesn't require a neutral wire, making it a good fit for homes with aging electrical systems.