The process is simple; however, it's possible to make some mistakes during the installation ( I did myself), so I decided to write an article to discuss this topic.

I got this Wi-Fi smart switch on Amazon to install myself in my apartment. 

This model is a single pole switch which means it does not work with a second switch on the same room.

The box brings everything necessary for the installation, including the wall mount plate and the electrical wire connectors.

Kasa smart light switch wiring

A regular switch requires 3 wires for the installation.

The Kasa smart switch requires 4 wires for the installation.

1. Neutral
2. Live/Load
3. Live/Load
4. Ground

The picture below shows the back part of the smart switch with the labels.

As you can see, the white wire is labeled Neutral on the top; then, there are two black wires labeled Live/Load and the green wire labeled as Ground.

The picture below shows a regular switch using three wires.

For the Kasa Smart Switch, you need to use four wires, which means you will use the same wires from your old regular switch plus the Neutral Wire.

See the picture below with the Kasa smart switch wiring diagram.

Kasa smart light switch installation example

Here's an example of a real installation.

I removed the old switch from a bathroom to install the Kasa smart light switch.

The first step is to remove the wall plate and the screws from the old switch.

Only two wires were connected to my old switch.

The third one (ground) was not there; perhaps the last electrician just forgot to connect it or was in a hurry. Anyway, the switch was working fine.

I found the ground wire and the neutral inside the electrical box.

The next step was to remove the wires (Live/Load) from the old switch and connect them to the Kasa smart switch. See the details in the picture below.

After wiring everything, I just mounted the smart light switch to the all and turned the breakers on.

As soon as the smart light switch gets power, an LED starts blinking to indicate that it's ready for the setup. The picture below shows the power and Wi-Fi LED.

The final step is to use a smartphone for the Smart Light switch setup and put the wall mount plate back into its place. When everything is finished, the switch shows a round symbol to indicate that it's working.

And the installation it's done. Easy, huh? 

You can do it too; just follow this example, and everything will be fine.

Video: How to install Kasa smart light switch

Here's a quick video that shows the smart switch installation.

Related articles

Here's a list of related articles that may help you.

Conclusion

The Kasa smart Wi-Fi light switch is easy to install; however, the difference between the number of wires compared to a regular switch may cause some confusion, but with the step-by-step instructions in this article, you can install it.

Before start, the installation, turn the breakers off to make the install is safe.

I hope this article can help you; please share it with your friends.

I bought this TP-Link's smart Wi-Fi light switch to test it out, and now you can check my opinion about this device before deciding if it's the right one for you.

I chose this model on Amazon, and I liked the price, so I decided to give it a try.

You can find bundles with two or three switches; I purchase only one just to make sure it would work the way I expected, so later I could buy extra ones

Let's take a look at the details...

Wi-Fi Smart Light Switch Overview

The product comes in a beautiful box that says you can use smartphones to turn lights and fans on and off from anywhere. You can also set a schedule and use Alexa and Google Assistant to command the appliances with your voice.

I like the idea that it's possible to use Alexa and Google just because I have other smart devices in my apartment that are paired with both of them.

The switch is a little bit larger than the normal (just a tiny bit), and the wall the plate measures 5 x 3.25 inches, compared to a standard 4.5 x 2.75 inches.

The way you turn the switch ON and OFF completley changes because there's only on position to for both operations and it takes some time to get used to it.

After the installation and setup, you can press the switch to turn it on and off, use the smartphone or command voice to control your lights.

In the dark, it's possible to see the LED, which makes it easier to locate the switch.

There's also an LED that indicates the Wi-Fi signal and connection status.

Using the Kasa App to control the lights

The Kasa app is easy to install and use; you just need to open the Playstore, download, install (if you don't have it yet), and follow the step-by-step setup.

After the setup, you can see the smart Wi-Fi switch available with the icon to indicate the light status. Just press the icon to turn the lights on and off.

It's also possible to schedule the lights to turn on and off and 

The Kasa app is easy to use and intuitive; you can add other devices to the list. 

Smart Wi-Fi Light switch Pros and Cons

Alright, everything has pros and cons, right? Let's talk about them...

Conclusion

The TP-Link's smart WiFi light switch is a good product to make the house more intelligent, allowing remote control of the lightbulbs.

It doesn't require a hub, and it's an affordable product.

I decided to buy new smart switches to use in other parts of my aparment.

If you want to give it a try, click the link below to check the price.