# Kasa KP405

*Kasa / KP405*

> The Kasa KP405 is for outdoor lights only. This IP64 plug-in dimmer is rated for 4 A, 300 W incandescent or 150 W LED. It suits Google Home and Alexa users, with native support through the maker's cloud. Home Assistant users reach it through an integration (the maker's cloud).

- Canonical page: https://smarthomecanon.com/devices/kasa-kp405
- Last checked: 2026-10-20

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [Kasa](https://smarthomecanon.com/brands/kasa) |
| Category | Plug |
| Model numbers | KP405 |
| Status | Current[^1][^2] |
| Type | Outdoor plugs[^2] |
| Matter | unknown |
| HomeKit | unknown |
| Energy monitoring | unknown |
| Outlets | unknown |
| Max load | 300 W incandescent, 150 W LED (MLV). 4 A maximum.[^2] |
| Connectivity | Wi-Fi 2.4 GHz[^2] |
| Released | unknown |
| Weather rating | IP64[^2] |

## Integration paths

**How the Kasa KP405 connects**

| Path | Requires | Local | Features lost |
| --- | --- | --- | --- |
| [Wi-Fi cloud](https://smarthomecanon.com/protocols/wifi-cloud) | 2.4 GHz Wi-Fi network, Kasa Smart app and account[^2] | unknown | unknown |

**Platform support for the Kasa KP405**

| Path | Platform | Support | Integration |
| --- | --- | --- | --- |
| Wi-Fi cloud | [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) | Native[^2] |  |
| Wi-Fi cloud | [Google Home](https://smarthomecanon.com/platforms/google-home) | Native[^2] |  |
| Wi-Fi cloud | [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) | withheld | tplink |
| Wi-Fi cloud | [Homey](https://smarthomecanon.com/platforms/homey) | withheld | com.tplink.kasa |

## Related pages

- [Kasa plugs, outlets and power strips](https://smarthomecanon.com/lines/kasa-plugs-and-power-strips) (line)
- [Kasa](https://smarthomecanon.com/brands/kasa) (brand)
- [Wi-Fi through a cloud service](https://smarthomecanon.com/protocols/wifi-cloud) (protocol)
- [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) (platform)
- [Google Home](https://smarthomecanon.com/platforms/google-home) (platform)
- [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) (platform)
- [Homey](https://smarthomecanon.com/platforms/homey) (platform)

## Sources

[^1]: Kasa Smart US: smart plugs listing. https://www.kasasmart.com/us/products/smart-plugs (manufacturer, checked 2026-10-09)
[^2]: Kasa Smart Outdoor Dimmer Plug (KP405) - Kasa Smart US. https://www.kasasmart.com/us/products/smart-plugs/product-kp405 (manufacturer, checked 2026-10-09)