Kasa Smart Wi-Fi Dimmer Switch

About This Guide

This guide provides a brief introduction to the Kasa Smart Wi-Fi Dimmer Switch and regulatory information. Features may vary slightly depending on the model, software version, location, and language. Images, steps, and descriptions are examples and may not reflect your actual experience.

Conventions

More Info

• Operating temperature, storage temperature, and other specifications: https://www.tp-link.com
• Technical Support and troubleshooting: https://www.tp-link.com/support/
• TP-Link Community for discussions: https://community.tp-link.com

Introduction

The KS225 is a smart Wi-Fi dimmer switch that allows you to control your home lighting brightness. After installation, adjust brightness using the Kasa Smart app, dimmer buttons, or voice commands via Siri®, Alexa, or Google Assistant. Control your dimmer from anywhere, anytime with Schedule, Timer, and Group Control. Set up Fade On/Off effects to enhance your home lighting.

Key Features:

• Matter-certified: Integrate with other certified products into any Matter-certified ecosystem.
• Brightness Control: Adjust light brightness for the perfect ambiance.
• Voice Control: Hands-free control with Siri®, Alexa, or Google Assistant.
• Schedule: Turn connected devices on/off automatically at a specific time.
• Grouping: Combine with other Kasa Smart devices for seamless control with a single tap.
• Away Mode: Turn connected fixtures on/off at random intervals to simulate occupancy.
• No Hub Required: Connects directly to your home's secure Wi-Fi network.

Appearance

The Smart Dimmer Switch is compatible with incandescent, LED, Halogen, and compact fluorescent light bulbs. It includes two brightness adjustment buttons and an LED indicator for status and night location.

Controls and Indicators:

• Brightness Adjustment Buttons: Press to decrease or increase lighting brightness.
• LED Indicator: Indicates current lighting brightness.

LED Status Explanations:

• Solid Amber: Starting up.
• Blinking Amber and Green: Ready for setup; Resetting Wi-Fi.
• Blinking Green: Connecting to Wi-Fi.
• Solid Green: Lit for about 30 seconds when connected to Wi-Fi, then turns off.
• Blinking Amber: Resetting.
• Red: No Wi-Fi connection.
• White: Lit when the light is switched OFF to show the Smart Dimmer's location in the dark.

Button Functions:

• RESTART: Press to reboot the Smart Dimmer.
• RESET:
  • Press and hold for about 5 seconds (Wi-Fi status LED blinks amber and green) to reset Wi-Fi while keeping other settings.
  • Press and hold for about 10 seconds (Wi-Fi status LED blinks amber rapidly) to factory reset the Smart Dimmer.

Wire Your Dimmer Switch

Follow these steps to wire your Smart Wi-Fi Dimmer Switch. Consult an electrician if you are unfamiliar with electrical wiring.

Before You Start:

1. Prepare Wiring Knowledge:
   • Ground: Usually green or copper.
   • Neutral: Usually white, not connected to the dumb switch.
   • Line: Usually black, connected to the dumb switch.
   • Load: Usually black, connected to the dumb switch.

   Note: If unsure, consult a qualified electrician.

2. Prepare Tools: Philips and slotted screwdriver, pliers, wire strippers, and a voltage detector.
3. Check Wi-Fi Strength: Ensure your switch is in an area with a strong Wi-Fi signal.

Installation Steps:

1. Step 1: Turn Off Power and Remove the Wallplate

   Turn off the circuit breaker. Remove the old wallplate and label the wires.

   [Diagram: Circuit breaker with 'OFF' indicated]

   CAUTION: Risk of Electric Shocks - High Voltage - Disconnect power supply at the circuit breaker before servicing.

   MISE EN GARDE: Risque d'électrocution - Haute tension: débranchez l'alimentation électrique au niveau du disjoncteur avant l'utiliser.

2. Step 2: Disconnect the Wires

   Gently pull the switch out, take a picture of the wires, and disconnect them from the old switch.

3. Step 3: Label the Ground and Neutral Wires

   Apply the 'Neutral' label to a bundle of white wires (they may be folded in the back). Apply the 'Ground' label to the Ground wire.

   [Diagram: Wires labeled 'Neutral' and 'Ground' with wire connectors]

4. Step 4: Identify the Line and Load Wires
   1. Turn on the circuit breaker. Use a voltage detector to identify the energized wire (Line wire).

   2. [Diagram: Wires labeled 'Line wire' and 'Load wire']

      Take care to avoid electric shocks.

   3. Turn off the circuit breaker. Label the Line and Load wires.
5. Step 5: Connect the Wires

   Connect the wires to the smart dimmer switch as shown below.

   [Diagram: Smart dimmer switch connections labeled 'Load', 'Line', 'Ground', 'Neutral' showing connections to 'To Light', 'Power Source']

6. Step 6: Install Your Smart Dimmer Switch

   Gently fold all wires back into the wall box. Line up the switch with the mounting holes and secure it with screws.

   [Diagram: Installing the switch into the wall box]

7. Step 7: Attach the Wallplate and Turn on Power

   Attach the wallplate and turn on the circuit breaker. The wiring is finished.

   [Diagram: Attaching the wallplate]

Set Up Your Dimmer Switch via Kasa

Follow these steps to set up your smart dimmer switch using the Kasa Smart app.

1. Install Kasa Smart app: Get the app from Google Play or the App Store, or scan the QR code below to download it.
   [QR Code]
2. Log in or sign up with TP-Link ID: Open the Kasa Smart app and log in with your TP-Link ID. Create an account if you don't have one.
   [App interface screenshot showing 'Welcome Home to Kasa' with 'Create Account' and 'Login' buttons]
3. Add Device: Tap the [+] button in the Kasa Smart app, select Add a Device > Smart Switches > Matter Smart Switch. Follow the step-by-step app instructions to complete setup.
   [App interface screenshot showing 'Add Device' with categories like 'Doorbells', 'Cameras', 'Smart Plugs', 'Smart Lights', 'Smart Switches']

Set Up Your Dimmer Switch via Matter

This is a Matter-certified device, allowing integration into Matter ecosystems like Alexa, Google, and Apple. Setup processes and user experience are continuously being optimized.

Before You Start:

• Get a Matter Controller: Needed to connect and manage Matter devices (e.g., Apple TV, HomePod). For details, refer to TP-Link's FAQ: https://www.tp-link.com/support/faq/3520/
• Reset Your Device: Start with a fresh device.
• Connect to Wi-Fi: Ensure your phone is on the same Wi-Fi network as your Matter controller (use 2.4 GHz if networks are separate).
• Access Matter Setup Mode: This mode turns off after 15 minutes of being powered up. Turn the device off and on again to re-enter setup.
• Locate Matter Setup Code: Find the QR code or numeric code on the device or packaging.
• Regarding the Matter Code: The original code is for one-time setup per app (reusable after a device reset). For multi-app setup, generate a new code via the first app.

How to Set Up?

Setup processes may vary between different apps.

1. Turn on Bluetooth on your phone.
2. Open the smart home app and scan the Matter QR code or input the numeric code.
3. Connect your device to the same network as your controller.
4. Follow the in-app instructions to complete setup.

Failed to Set Up?

Troubleshoot common setup issues:

1. Update Firmware: Ensure your Matter hub and Smart Home app firmware are up-to-date.
2. Restart: Turn your device and controller off/on. Restart your smartphone and clear the smart home app cache.
3. Check IPv6: Ensure IPv6 is activated on your router. See FAQ for guidance: https://www.tp-link.com/support/faq/1525/
4. Enable Setup Mode: Restart your device to re-enter setup mode (Bluetooth turns off after 15 minutes).
5. Regarding the Matter Code: Original code is for one app; generate new codes for multiple apps.
6. Stay on the Code-Generating Page: Do not close the page during multi-admin setup. If closed accidentally, try reopening or restart the device to generate a new code.
7. Factory Reset Your Device: Try a factory reset.
8. Device Already Added: Get a new setup code according to the FAQ on integrating devices into other ecosystems.

If problems persist, try a factory reset or use another smartphone for configuration.

More Information of Matter:

• Setup guides for Alexa, Google, Apple: https://www.tp-link.com/support/faq/3564/
• Matter setup troubleshooting: https://www.tp-link.com/support/faq/3574/
• General Matter questions/troubleshooting: https://www.tp-link.com/support/faq/3520/
• Third-party setup video: https://youtu.be/JS_7KmENSbo
• Matter multi-admin setup/demo video: https://youtu.be/C3t4kglK6tc

Support

Matter is still developing; platform progress and device performance may vary. TP-Link is working to optimize user experience with other CSA members.

Our expert Technical Support team is ready to assist you. Your feedback is vital!

• EMAIL: support.usa@tp-link.com
• CALL: +1 866 225 8139 (Toll Free)
• CHAT: https://livechat.tp-link.com/us/smart/

Authentication and Compliance

FCC Compliance Information Statement

Product Name: Kasa Smart Wi-Fi Dimmer Switch

Model Number: KS225

Responsible Party: TP-Link USA Corporation

Address: 10 Mauchly, Irvine, CA 92618

Website: http://www.tp-link.com/us/

Tel: +1 626 333 0234

Fax: +1 909 527 6804

E-mail: sales.usa@tp-link.com

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy. If not installed and used per instructions, it may cause harmful interference to radio communications. There is no guarantee that interference will not occur in a particular installation. If this equipment causes harmful interference to radio or television reception (determined by turning the equipment off and on), the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference.
2. This device must accept any interference received, including interference that may cause undesired operation.

Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

Note: The manufacturer is not responsible for any radio or TV interference caused by unauthorized modifications.

FCC RF Radiation Exposure Statement

This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This device and its antenna must not be co-located or operating in conjunction with any other antenna or transmitter.

To comply with FCC RF exposure compliance requirements, this grant is applicable to only Mobile Configurations. The antennas used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter.

TP-Link USA Corporation has determined that the equipment shown complies with applicable technical standards, FCC part 15. No unauthorized changes have been made, and the equipment is properly maintained and operated.

Issue Date: 2023-08-21

Canadian Compliance Statement

This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada's licence-exempt RSS(s). Operation is subject to the following two conditions:

1. This device may not cause interference.
2. This device must accept any interference, including interference that may cause undesired operation of the device.

French translation: L'émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux CNR d'Innovation, Sciences et Développement économique Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : 1) L'appareil ne doit pas produire de brouillage; 2) L'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.

Radiation Exposure Statement:

This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment. It should be installed and operated with a minimum distance of 20cm between the radiator and your body.

French translation: Cet équipement est conforme aux limites d'exposition aux rayonnements IC établies pour un environnement non contrôlé. Cet équipement doit être installé et utilisé avec un minimum de 20 cm de distance entre la source de rayonnement et votre corps.

Industry Canada Statement

CAN ICES-3 (B)/NMB-3(B)

Safety Information

Before installing, servicing, or removing the switch, read and follow all safety precautions:

• Follow all national and local safety regulations and practices. Consult a qualified electrician if uncertain.
• CAUTION – Risk of Electric Shock: More than one disconnect switch may be required to de-energize the equipment and luminaire before servicing. A circuit breaker that disconnects the Line and Neutral conductor simultaneously is suitable.
• CAUTION – High Voltage: Disconnect power supply before servicing. Ensure power is off at the circuit breaker before removing or installing any switch. Use a non-contact voltage tester to ensure power is off.
• Do not install the Smart Dimmer Switch with wet hands or while standing on wet or damp surfaces.
• Keep the device away from water, fire, humidity, or hot environments.
• Do not attempt to disassemble, repair, or modify the device. Contact support for service.
• Do not use the device where wireless devices are not allowed.
• Rating: 120V~ 60Hz
• Supported Load: 300W Incandescent/Halogen, 150W LED.
• Operation temperature: 32°F~104°F (0~40°C)
• Installation: Install only in a suitable UL Listed outlet box (dimensions: H > 2.95 in. / 75 mm, W > 1.81 in. / 46 mm, D > 2 in. / 51 mm).
• Tighten terminal screws to 13 lbf-in.

CAUTION: Electrical switch integrated in this product is only intended for functional purposes. De-energize the product at the circuit breaker before servicing.

Explanation of the Symbols on the Product Label

Symbols may vary from products.