WiFi Smart Switch Light Switch, Compatible with Alexa/Google Home, APP Remote Control, Voice Control, DIY Mode, Timer Function, LAN Control, No Hub Required, 2 Way 16A(4 Pack)

These work fantastic
I had taken apart an old wifi plug and soldered it into some outdoor lights for control. Sadly it went bad after a couple years. This was a perfect replacement. I was able to connect it up, have it connected to wifi, all in under 5 minutes. And I set them on a schedule using the app and its been working great. At a much cheaper price. A fantastic wifi switch that took zero effort for me to use

Welp, you get what you pay for.
I’m amazed by how well it worked, the instructions for wiring was actually well written, and the most important part is that the pictures were well labeled making it easy to wire.It’s not the newest model of the tech, so it’s not matter enabled, but it works incredibly well for what it is, specially at the price.UPDATE, Changed to 1 star because both failed in the exact same way, both blew the capacitor melting the little case and dying, I suspect if I replaced the cap, it would work again but not even worth trying.

Not exactly straight forward
Here is how the device works. When turned on, L-out and L-in is shorted. N-in, N-out, and s1 is always shorted. S2 when state change is will flip L-in and L-out.I need it to flip a light switch. For me the easiest way for me to make it work, was to connect a new wire from ac hot to n-in then take the two wires from the switch and put into L-in (power, you will need to determine which on is hot) then the other wire from the switch to L-out. So now the device is the switch. With l-in and n-in is where it powers the device. Then I added 2 wires from s1 and s2 back to the original switch. Basically when s1 and s2 is shorted it flips the device switch (short l-in and l-out).Hope this helps.

Excellent!
These work flawlessly with the Google Home app. They are compact enough to fit in a single gang box. The wiring instructions that came with it were not that great, however, the instructions on in the description online was much clearer. I will purchase more in the future.

Lovely product for adding wifi capability to anything. Small enough to be house in a light fitting. And what you probbably didnt know, is that they can be used on DC wiring as well, so if you already have some low voltage lighting strips and you dont want to replace them, you can simply wire them into the DC side. Mine are working perfectly at 12V. Make sure you follow the diagram. And best of all, they dont need a dodgy app to control them, easily plugs into smart life

I have to preface this review by saying that I have a background in electrical/electronic engineering, so I am not your typical DIYer; however, with a bit of Internet searching for videos, practically anyone can use these.Firstly, why did I buy these and not a smart bulb? Two reasons:(1) I did not want to spend a lot of money on a smart LED bulb only to throw it away in a few years when it fails, plus I have some really cheap LED bulbs fitted that work just fine; and(2) I wanted something that just worked with my router and did not need a hub.Second, why these in particular? Because they are really cheap, small enough to hide away in a light fitting and work really reliably. These need both live and neutral feeds, so require fitting at the ceiling rose; you can buy ones that just need live and ‘steal’ a neutral feed through the bulb that can be fitted at the switch, but they are more expensive and there is no room to conceal them behind a UK light switch. I have attached three photos to show you how I have concealed mine:(1) I bought some large rose covers to hide the switch for standard light fittings;(2) I hid the switch in the little junction box for my LED floodlights; and(3) for my new, low-profile LED kitchen strip light that fits flush to the ceiling, I just cut a recess into the ceiling to tuck the switch into which is then concealed when the strip light is fitted.The live and switched-live feed to your wall switch connect to the two switch terminals on this WiFi switch; that means you have a no/low voltage switch circuit. Using the app, you can programme the wall switch to either toggle the light on and off regardless of which position the switch is in, or sync it so that the light obeys the normal ‘up is off’ ‘down is on’. Whichever way you programme it, your digital assistant of choice can always override it when you give voice commands to switch on or off. I use Alexa for everything, and I have a routine to turn my landing light on at dusk and off at dawn for security when I am away.Finally, these work very reliably [so far] and do not need a very strong WiFi connection to do so. I am a very happy customer.

Easy to install and works fantastic!