Most smart switches need a neutral wire, which allows your smart light switch keep powered up and linked to Wi-Fi continually. If your home was constructed before 1985 (plus the wiring hasn’t been up-to-date), you might deficiency that vital wire. If that’s the case, then I like to recommend using https://smartlightswitchwhiteclea37890.pages10.com/5-essential-elements-for-wiring-systems-70084265