Wi-Fi Smart Wall Light Switch,Touch,Voice and Remote Control Lights and Appliances Timing Function Compatible with Alexa and Google Assistant,No Hub Required, Natural Wire Required-15A Physical Key

I got this because it was a lot less expensive than the brand that I have bought in the past for smart home devices. A common practice that electricians use to install light switches is to use one hot wire to light switch then on to the light, so make sure that the neutral is in your switch box this will not work without being connected to the neutral. This switch also has a ground wire, I had the a neutral but no ground. The instructions on how to install and set up the device is very small and in my opinion not detailed enough for the average person to understand. I have installed 5 other devices in a different brand that cost almost twice the price as this cost but the setup was a lot easer, to me the extra cost might be worth it. I was just verily able to get this with the wire nuts in the switch box that had been installed, I would not have had room enough to have a wire nut for the ground. This would work better in a larger switch box. All connections are through wires there are no screw connections like most light switches have.

I have a lot of home automation devices, and this is one of the best I've gotten. The plugs (aka wall warts) have had often have connection issues. The smart bulbs can't be used unless the power to the bulb is switched on manually first. And the touch panel light switches are hard to use for turning on and off in the dark. I think i'm going to replace all of them with these switches.This button switch is the best of all words. I can use it when the lights are on or off, since it acts as the switch itself. There have been no issues with connection, and even my non techy visitors (like my mom) still understand how to use it by pushing a button to turn on and off the light. Plus there's really no way she or anyone can mess it up (unlike with the bulbs or switches where people turn off the light or lamp and now it can't work).

I bought 4 of these switches and am quite pleased with them. They work fully as described and the companion App is easy to use although I did have to use the advanced; initialization method to get them to work. Also, the housing is made entirely of plastic so it is not self grounding; in applications where metal conduit and metal switch boxes are used. Therefore there are 4 wires to connect, the hot, the neutral, the load and the ground wire. It all makes sense if you are familiar with electrical connections. One wrinkle is that the app has one time setting (does not recognize daylight saving time) so if you use the switch to turn something on at a certain time of day (lights, for example) you will have to occasionally adjust throughout the year to come at at an appropriate time, butt hen you would have to do that anyway as the days lengthen, and it's easy to do. The app may have a feature to allow for switching things on and off at sunrise & sunset in your local area. I've not looked that far into it yet.Update nine months later: I am now not pleased with these switches. At first they would occassionally not turn on or not turn off as scheduled (although they worked fine for 98% of the time). Now I can not get them to turn on automatically at all, although they do turn off as scheduled (?). I am going to replace them with something hopefully more reliable. Not pleased, $125 down the drain for 4 of them.

Switch was a little funky to get set up but really worked great the first few weeks. Set up instructions not really that good. After about a month the green light on the switch stopped working, but that was just an inconvenience as the switch still functioned. A few weeks after the month, the switch totally stopped working and I had to turn the lights off at the breaker outside the house. The switch had been installed by an licensed electrician. I contacted Gelettek as there was a 12 month warranty on the switch. After having the electrician checking the switch again, sending pictures to Gelettek and other e-mails I was left with the response on 12/26/18 "I will tell this situation to our leaders. Wait for our leader response". I am still waiting for the response. I also filed a complaint with Amazon customer service. I bought a different less smart switch at Home Depot for less money and it is still working fine. I would not advise doing business with Gelettek as the product did not work and the promise of a 12 month warranty was fraudulent.

Works great. I bought two, one which I setup on a schedule to turn on/off my front lights. Can control by WiFi, but with the schedule set, I don't need to. When the days get shorter, it is very easy to adjust the schedule. I use the Smart Life app to control the switch.The second switch is connected to my ceiling fan so now neither I nor my wife need to get off the couch to turn the fan on/off. (Lazy Americans!) "Alexa, turn on the ceiling fan" and wala! the fan is on. Installation of the switches was just beyond my capability since one of them was going into a four banger box with many wires. Electrician friend of mine installed both. (I paid him). The ceiling fan can also be controlled when away from home, again with the Smart Lilfe app, in case my wife forgets to turn it off when she leaves. Setup with Smart Life and Alex took just a few minutes.I also set a schedule for the fan to turn off each night at midnight in case we forget to turn it of when we go to be.