Customize Lighting Ambience from Anywhere

Smart Wi-Fi Light Switch, Dimmer  |  KS225

Smart Wi-Fi Dimmer Switch

Customize Lighting Ambience from Anywhere

Dim and Control Your Lights from Wherever You Are


  • Matter-certified

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

  • Brightness Control

    Control the brightness of your lights to set the ideal ambiance for different activities.

  • Fade On/off

    Slowly increase brightness or dim to off when turning lights on/off.

  • 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.

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.

Brightness Control

Control the brightness of your lights in any room from the wall switch, apps, or voice assistants. Set optimal dimming range for the perfect ambience.

Fade On/Off

Smart dimmer switch smoothly adjusts lighting levels without sudden eye-irritating brightness or darkness. Fade off the lights in your child's bedroom as they drift off to sleep.

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.


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.

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.

Technical Specifications +

Standards And Protocols

Secured Wi-Fi Network


IEEE 802.11b/g/n

Wireless Type

2.4GHz 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*1.78 in. (128.65*84.6*44.9mm)




On/Off Switch Button

Brightness Increase Button

Brightness Decrease Button

Restart Button

Reset Button


0.33 lb (net weight)

0.15 kg (net weight)

Packaging Dimensions

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

Working Status
Input Voltage

120V~ 60Hz

Neutral wire required

Maximum Load

150W LED(MLV), 300W Incandescent

Dimming Type : Leading Edge Dimming / Triac Phase Cut

It’s also suggested to contact the bulb’s Support to check the supported dimming type of the bulb.


What's Included

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