Enhanced Control for Traditional Bulbs

Smart Wi-Fi Light Switch  |  KS205

Smart Wi-Fi Light Switch

Enhanced Control for Traditional Bulbs | KS205

Make your traditional light bulb smarter with the Kasa Smart Wi-Fi Light Switch.


  • Matter-certified

    Integrate Matter-certified Kasa devices with other certified products into any Matter-certified ecosystem.

  • Voice Control

    Manage your smart switch with voice commands via Amazon Alexa, Apple Siri®, or Google Assistant.

  • Remote Control

    Instantly turn connected devices on/off from wherever you are through the Kasa Smart app.

  • Schedule

    Preset a schedule to automatically manage devices.

  • Auto-off Timer

    Automatically turns off a connected device after the device is left on for a set time.

Meet Matter: All-Round Compatibility

With Matter support, using one app to control all smart devices is no longer a fantasy. Integrate Kasa Matter devices into your favorite ecosystems to create a unified smart home.

Voice Control

Use simple voice commands with Alexa, Siri®, Google Assistant, or any other Matter-compliant voice assistant to conveniently control connected lights without leaving your spot.

Control from Anywhere

Control your lights from anywhere with the Kasa Smart app. No more worrying about forgetting to turn off the lights.

Local Control

Your connected devices in your local area network (LAN) remain accessible via the Kasa Smart app or other Matter-compatible smart home control centers, even when the household goes offline.

Lighting Schedule

Schedule your lights to turn on/off automatically according to your daily routine and preferences. This way, you always walk into a well-lit house.

Auto-Off Timer

Automatically turns off your lights after they are left on for a set time. Ideal for laundry rooms, basements, and other areas you visit infrequently.

Set Scenes

Control multiple devices all at once for a customizable scene. Instantly set the perfect ambience for any activity.

Share to Family

The Matter protocol enables family members to access your home's smart products through different control ecosystems.

Away Mode

Automatically turn on and off connected appliances, like lights, to make it appear as if you're home.

Enjoy Easy, Friendly Setup

Kasa offers users multiple options to simplify configuration experiences. Use Bluetooth to easily onboard the smart switch with Kasa Smart app. Users can also set up KS205 by scanning the included code with any Matter-compatible app, such as the Alexa app, Google Home app, and Apple Home app.

Easy Installation Following the In-App Guide

Technical Specifications +

Standards And Protocols

Secured Wi-Fi Network


IEEE 802.11b/g/n

Wireless Type

2.4 GHz WiFi

System Requirements

Android 5.0 or higher, iOS 10 or higher




Indoor use only

Dimensions( H X W X D )

5.06*3.33*1.4 in. (128.65*84.65*35.7 mm)




On/Off Switch, Restart, Reset


0.33 lb (net weight)

0.15 kg (net weight)

Packaging Dimensions

4.65 x 2.56 x 6.73 in (118.11 x 65.02 x 170.94 mm)

Working Status
Input Voltage

100 - 120V~ 50/60 Hz, 15 A

Neutral wire required.

Maximum Load

15 A General Use, 600 W Incandescent, 120 W Ceiling Fan


What's Included

  • 1 × Smart Wi-Fi Light Switch
  • 1 × Wall Plate
  • 2 × Screws
  • 4 × Wire Nuts
  • Wire Labels
  • Quick Start Guide