TP-Link KS205 User manual

User Guide
Kasa Smart Wi-Fi Light Switch, Single Pole
KS205
© 2023 TP-Link 1910013521 REV1.0.0

Contents
About This Guide ················································································1
Introduction ···························································································2
Appearance ···························································································3
Wire Your Smart Switch···································································4
Set Up Your Smart Switch via Kasa··········································7
Set Up Your Smart Device via Matter ······································8
Authentication···················································································11

1
About This Guide
This guide provides a brief introduction to Kasa Smart Wi-Fi Light Switch and regulatory information.
Features available in Kasa Smart may vary by model. All images, steps, and descriptions in this guide are only examples and may not reect your actual
Kasa Smart experience.
Conventions
In this guide, the following convention is used:
Convention Description
Teal Key information appears in teal, including management page text such as menus, items, buttons and so on.
Underline Hyperlinks are in teal and underlined. You can click to redirect to a website.
More Info
• Specications can be found on the product page at https://www.tp-link.com.
• Our Technical Support and troubleshooting information can be found at https://www.tp-link.com/support.
• A Technical Community is provided for you to discuss our products at https://community.tp-link.com.
• Setup Video can be found at https://www.tp-link.com/support/setup-video/.

2
Introduction
TP-Link Smart Wi-Fi Light Switch is a standard, single-pole, wall light switch that can be controlled via your iOS or Android devices. Control your home
lighting or ceiling fans on your phone from anywhere, anytime with the Kasa Smart app. Turn xtures on and o, set schedules, even group them with
other Kasa Smart devices. The Kasa Smart app provides easy step-by-step installation instructions and convenient remote control from anywhere.
• Matter-certied - Integrate Matter-certied Kasa devices with other certied products into any
Matter-certied ecosystem.
• Control From Anywhere - Control anything connected to your smart light switch, like lights, ceiling
fans or other xtures, from anywhere using the Kasa Smart app.
• Voice Control - With any Alexa, Siri or Google Assistant you can control any xture connected to
your Kasa Smart light switch with simple voice commands.
• Grouping - Use Grouping to combine your light switch with other Kasa Smart devices for seamless
control with one single tap on your smartphone.
• Away Mode - Set your smart light switch to turn connected xtures on and o at random intervals
to make it appear as if you're home even while you're away.
• Easy Installation - No need to understand complex wiring, just follow the step-by-step wiring
process in the Kasa Smart app for a guided installation of your smart light switch.
• No Hub Required - The Kasa Smart Wi-Fi Light Switch connects to your home's secure Wi-Fi
network. No need for a hub or extra equipment.

3
Appearance
The Smart Switch is compatible with incandescent, LED, Halogen, and compact uorescent light bulbs. The switch also includes a white backlight LED
indicator to easily locate the switch at night. See the explanation below:
On/O
Button
Restart
LED
Reset
Button Explanations
Restart
Reset
Press and hold for about 5s to reset
Wi-Fi while keeping other settings.
Press to restart your switch.
Press and hold for about 10s to restore
your switch to factory default settings.
LED Status
Starting up.Solid amber
Blinking amber
Blinking green
White
Solid red
Stay green for 30s
Blinking amber & green
Connecting to Wi-Fi.
Ready for setup.
Device resetting.
Light fixture is off.
Disconnected from Wi-Fi.
Connected to Wi-Fi.

4
Wire Your Smart Switch
Follow the steps below to wire your Smart Wi-Fi Light Switch. If you are not familiar with basic electronical wiring, please consult an electrician.
Before You Start
1. Prepare Baisc knowledge of Wiring
• Ground: Usually green or copper.
• Neutral: Usually white, not connected to the dumb switch.
• Line: Usually black, and connected to the dumb switch.
• Load: Usually black, and connected to the dumb switch.
Note: If you are unsure, consult a qualied electrician.
2. Prepare Your Tools
Prepare a philips and slotted screwdriver, pliers, wire strippers and a voltage detector.
3. Check Wi-Fi Strength
Make sure your switch is in a area with strong Wi-Fi signal.

5
Step 1. Turn O Power and Remove the Wallplate
Turn o the circuit breaker. Then remove the old wallplate of the wall
switch and label the wires.
Step 3. Connect the Wires
Use the labels and wire nuts to connect the wires to the smart switch as
shown below. You can distinguish Ground and Neutral lines by their colors.
Note: No need to distinguish between Line and Load wires.
3
Wire Your Smart Switch
Step 2. Disconnect wires from the old switch
Gently pull the switch out and disconnect wires from the old switch.
MISE EN GARDE
Risque d'électrocution - Haute tension: débranchez l'alimentation électrique au niveau du disjoncteur avant l'utiliser.
CAUTION
Risk of Electric Shocks - High Voltage - Disconnect power supply at the circuit breaker before servicing.

6
Step 4. Install Your Smart Switch
Gently fold all of the wires back into the wall box. Line up the switch
with the mounting holes. Secure it with screws.
Step 5. Attach the Wallplate and Turn on Power
Attach the wallplate and turn on the circuit breaker. Then the wiring is
nished.

7
Set Up Your Smart Switch via Kasa
Follow the steps below to set up your Smart Light Switch via Kasa Smart app.
1. Download and install Kasa app
Go to Google Play or the App Store or
scan the QR code below to download the
Kasa Smart app on your Android or iOS
smartphone or tablet.
2. Log in or sign up with TP-Link ID
Open the app. Use your TP-Link ID to log in.
If you don’t have a TP-Link ID, tap Create
Account and the Kasa Smart app will guide
you through the rest.
3. Add Device
Tap the + button in the Kasa Smart app, select
Smart Switch > Matter Smart Switch, and
then follow step-by-step app instructions to
complete the installation and setup.

8
Set Up Your Smart Device via Matter
This is a Matter-certied device. You can integrate it into any Matter ecosystem you prefer for easy control, such as Alexa, Google, and Apple ecosyms.
As IoT manufacturers are working to optimize the user experience of Matter setup, the setup process and user experience should improve over time.
Follow the instructions below to set up your smart device via the Matter app.
Before You Start
• Get a Matter Controller: This is needed to connect and manage Matter devices on your home network. For instance, Apple TV and HomePod are
examples of Matter controllers.
For details, please refer to the Part 3. General Questions for TP-Link Matter-enabled Devices at https://www.tp-link.com/support/faq/3520/.
• Reset Your Device: It's important to start with a fresh device. Here's how:
- For most devices: Press and hold the 'Reset' button for 10 seconds.
- For smart bulbs: Turn the light switch o and on ve times, with a 2-second pause between each action.
• Connect to Wi-Fi: Connect your phone to the same Wi-Fi network as your Matter controller. Choose the 2.4 GHz network if 2.4 GHz and 5 GHz
networks are separate.
• Access Matter Setup Mode: This mode turns o in15 minutes after the device is powered up. To return to setup, simply turn your device o and
then back on.
• Locate Matter Setup Code: Look for a QR code or a numeric code on your device or in its packaging. Snap a picture of it for future reference.
• Regarding the Matter Code: The original Matter code can only be used for setup in one app (you can reuse it after a device reset). If you wish to set
it up in multiple apps, generate a new code using the rst app for all subsequent ones.
How to Set Up
*Setup processes may vary between dierent apps.
1. Turn on Bluetooth on your phone.
2. Open the smart home app, and either scan the Matter QR code or input the given numeric code.
3. Connect your device to the same network as your controller.
4. Follow the instructions in the app to complete setup.