Most smart switches require a neutral wire, which lets your smart light switch continue to be powered up and connected to Wi-Fi all the time. If the home was crafted ahead of 1985 (and also the wiring hasn’t been up-to-date), you may lack that important wire. If that’s the situation, https://wiring-systems02008.blog2learn.com/82450654/not-known-facts-about-wiring-to-lights