Fast shipping. Easy hook up for 1gang. Neutral piggyback to N slot, LOAD to L, other wire to L3. Fits standard one gang toggle switch openings perfectly. Hook up, tuck wires in, tuck backplate in, screw into place, snap on tempered glass faceplate and dome. I had difficult time connecting to WiFi for some reason I kept getting a DEVICE NOT RESPONDING. so I went back to app and under electric I chose not the WiFi switch but another one if you scroll blow the choices. For some reason, probably my human error, the app found the switch in smart life app..you can turn light on and off from app and it works great. Soothing blue on/off area and WiFi. When you install it, make sure WiFi signal is on top. Sleek, modern thin fabulous gadget. Glad we made the purchase. If you only want to use it as a light switch, you can do that and not set up WiFi.