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Aqara Dimmer Switch H2 US

Aqara / WS-K05E

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Aqara Dimmer Switch H2 US, product photo
Image: Aqara

Does the Aqara Dimmer Switch H2 US work with HomeKit, Alexa, and Google Home?

The Aqara Dimmer Switch H2 US (WS-K05E) is a paddle dimmer on Thread and Zigbee, with native Matter over Thread.

The EU model needs no hub in Thread mode and has an optional neutral wire. It suits HomeKit, Google Home and Alexa users, with native support through Matter over Thread. Home Assistant users get native support through Zigbee.

At a glance: works withHow this is decided: cited platform facts only
HomeKit
Yes[1]
Matter / Thread, native
Google Home
Yes[1]
Matter / Thread, native
Alexa
Yes[1]
Matter / Thread, native
SmartThings
Unknown
Unknown
Home Assistant
Yes[2]
Zigbee, native

Key facts

Aqara Dimmer Switch H2 US facts

How facts are sourced: every cell cites its source below
FactValue
StatusCurrent[3]
List price$49.99[1] as of
GroupWall switches and dimmers[3]
RadioThread/Zigbee, Bluetooth[4]
Hub neededNone in Thread/Matter mode. Aqara hub in Zigbee mode.[5] (Stated for the EU model.)
Matter pathMatter over Thread (native)[4][5]
Neutral wireNeutral optional[6] (Stated for the EU model (KD-R01E).)
Region and loadUS, 120 VAC 60 Hz. Incandescent/halogen up to 360 W, dimmable LED/CFL and ELV up to 240 W.[4]
Power or batteryMains[4]
Key differencePaddle/dial dimmer for US boxes[4]
Releasedunknown

Integration paths

How the Aqara Dimmer Switch H2 US connects

2 pathsHow facts are sourced: every cell cites its source below
PathRequiresiLocaliFeatures lostPlatformsi
Matter / ThreadBRMatter controller, Thread border router[5]unknownunknown
ZigbeeHUBAqara hub[5]unknownunknown
About these columns
Requires
Hardware the path needs beyond the device and a controller.
Local
Yes when control on this path keeps working with the internet down.
Platforms
The platforms that work with the device on this path: Native (out of the box), Via integration (needs an add-on) or Not supported.

Home Assistant and Homey

Ways to add the Aqara Dimmer Switch H2 US

2 routesHow facts are sourced: every cell cites its source below
PlatformLeveliIntegrationDetailsEvidenceLimitations
Home AssistantVia Zigbee/Z-Wave[2]zigbee2mqttZigbee
  • Works with Home Assistant: Not certified[2]
Model namedLimited: Ships with Thread/Matter firmware; Zigbee firmware flashing required for Zigbee2MQTT; Ships with Thread/Matter firmware; Zigbee use needs a firmware flash through the Aqara Home app, a phone and an Aqara account[2]
HomeyCommunity app[7]ai.zigbee.aqaraZigbee
  • App: Community[7]
  • Runs on: Homey Pro[7]
Model namedNone stated
About these columns
Level
How the device gets into the platform on this route. The headline is the best route: local before cloud, direct before bridged, core before community. The methodology page lists every level.

Cite this page

Aqara Dimmer Switch H2 US. Smart Home Canon. https://smarthomecanon.com/devices/aqara-dimmer-switch-h2-us. Last checked 2026-10-20.

Sources

  1. [1]
    MFRus.aqara.com / Aqara US store: Dimmer Switch H2
    Accessed Back to text
  2. [2]
    DBzigbee2mqtt.io / Zigbee2MQTT: Aqara WS-K05E (Dimmer Switch H2 US)
    Accessed Back to text
  3. [3]
    MFRaqara.com / Aqara US: Smart Controllers category listing
    Accessed Back to text
  4. [4]
    MFRaqara.com / Aqara US: Dimmer Switch H2 US specs
    Accessed Back to text
  5. [5]
    PRhomekitnews.com / HomeKit News: Aqara's H2 dimmer switches arrive in the EU (2025-02-20)
    Accessed Back to text
  6. [6]
    PRsmarthomescene.com / Smart Home Scene: Aqara Dimmer Switch H2 review
    Accessed Back to text
  7. [7]
    DOChomey.app / Homey App Store: Aqara Community App
    Accessed Back to text