# Aqara Dimmer Switch H2 US

*Aqara / WS-K05E*

> 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.

- Canonical page: https://smarthomecanon.com/devices/aqara-dimmer-switch-h2-us
- Last checked: 2026-10-20

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [Aqara](https://smarthomecanon.com/brands/aqara) |
| Category | Switch |
| Model numbers | WS-K05E |
| Status | Current[^1] |
| Group | Wall switches and dimmers[^1] |
| Radio | Thread/Zigbee, Bluetooth[^2] |
| Hub needed | withheld |
| Matter path | withheld |
| Neutral wire | withheld |
| Region and load | US, 120 VAC 60 Hz. Incandescent/halogen up to 360 W, dimmable LED/CFL and ELV up to 240 W.[^2] |
| Power or battery | Mains[^2] |
| Key difference | Paddle/dial dimmer for US boxes[^2] |
| Released | unknown |

## Integration paths

**How the Aqara Dimmer Switch H2 US connects**

| Path | Requires | Local | Features lost |
| --- | --- | --- | --- |
| [Matter / Thread](https://smarthomecanon.com/protocols/matter-thread) | withheld | unknown | unknown |
| [Zigbee](https://smarthomecanon.com/protocols/zigbee) | withheld | unknown | unknown |

**Platform support for the Aqara Dimmer Switch H2 US**

| Path | Platform | Support | Integration |
| --- | --- | --- | --- |
| Matter / Thread | [HomeKit](https://smarthomecanon.com/platforms/homekit) | Native[^3] |  |
| Matter / Thread | [Google Home](https://smarthomecanon.com/platforms/google-home) | Native[^3] |  |
| Matter / Thread | [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) | Native[^3] |  |
| Zigbee | [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) | withheld | zigbee2mqtt |
| Zigbee | [Homey](https://smarthomecanon.com/platforms/homey) | withheld | ai.zigbee.aqara |

## Related pages

- [Aqara switches, plugs and lights](https://smarthomecanon.com/lines/aqara-switches-plugs-and-lights) (line)
- [Aqara](https://smarthomecanon.com/brands/aqara) (brand)
- [Matter over Thread](https://smarthomecanon.com/protocols/matter-thread) (protocol)
- [Zigbee](https://smarthomecanon.com/protocols/zigbee) (protocol)
- [HomeKit](https://smarthomecanon.com/platforms/homekit) (platform)
- [Google Home](https://smarthomecanon.com/platforms/google-home) (platform)
- [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) (platform)
- [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) (platform)
- [Homey](https://smarthomecanon.com/platforms/homey) (platform)

## Sources

[^1]: Aqara US: Smart Controllers category listing. https://www.aqara.com/us/product/controller/ (manufacturer, checked 2026-10-08)
[^2]: Aqara US: Dimmer Switch H2 US specs. https://www.aqara.com/us/product/dimmer-switch-h2-us-specs/ (manufacturer, checked 2026-10-08)
[^3]: Aqara US store: Dimmer Switch H2. https://us.aqara.com/products/aqara-dimmer-switch-h2-us.json (manufacturer, checked 2026-10-12)