# Tapo S505D

*Tapo / S505D*

> The Tapo S505D is the Matter version of the Tapo dimmer switch, which is how it reaches HomeKit. It fits US wall boxes and also works with Alexa, Google Home and SmartThings through Matter. It suits HomeKit, Google Home, Alexa, SmartThings and Home Assistant users, with native support through Matter over Wi-Fi.

- Canonical page: https://smarthomecanon.com/devices/tp-link-tapo-s505d
- Last checked: 2026-10-20

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [Tapo](https://smarthomecanon.com/brands/tp-link-tapo) |
| Category | Switch |
| Model numbers | S505D |
| Status | Current[^1] |
| Type | Dimmer[^1] |
| Matter | withheld |
| HomeKit | HomeKit via Matter[^1] |
| Voice assistants | Alexa, Google Assistant, SmartThings, HomeKit[^1] |
| Key spec | 300 W incandescent/halogen, 150 W LED (TRIAC dimmable)[^1] |
| Connectivity | Wi-Fi 2.4 GHz. Bluetooth for setup.[^1] |

## Integration paths

**How the Tapo S505D connects**

| Path | Requires | Local | Features lost |
| --- | --- | --- | --- |
| [Matter / Wi-Fi](https://smarthomecanon.com/protocols/matter-wifi) | 2.4 GHz Wi-Fi network, Matter-compatible app[^1] | unknown | unknown |
| [Wi-Fi local](https://smarthomecanon.com/protocols/wifi-local) | unknown | unknown | unknown |
| [Wi-Fi cloud](https://smarthomecanon.com/protocols/wifi-cloud) | 2.4 GHz Wi-Fi network[^1] | unknown | unknown |

**Platform support for the Tapo S505D**

| Path | Platform | Support | Integration |
| --- | --- | --- | --- |
| Matter / Wi-Fi | [HomeKit](https://smarthomecanon.com/platforms/homekit) | Native[^1] |  |
| Matter / Wi-Fi | [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) | Native[^1] |  |
| Matter / Wi-Fi | [Google Home](https://smarthomecanon.com/platforms/google-home) | Native[^1] |  |
| Matter / Wi-Fi | [Samsung SmartThings](https://smarthomecanon.com/platforms/smartthings) | Native[^1] |  |
| Matter / Wi-Fi | [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) | withheld |  |
| Matter / Wi-Fi | [Homey](https://smarthomecanon.com/platforms/homey) | withheld |  |
| Wi-Fi local | [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) | withheld | tplink |
| Wi-Fi cloud | [Homey](https://smarthomecanon.com/platforms/homey) | withheld | com.tapo |

## Related pages

- [TP-Link Tapo bulbs, light strips and switches](https://smarthomecanon.com/lines/tp-link-tapo-lighting-and-switches) (line)
- [Tapo](https://smarthomecanon.com/brands/tp-link-tapo) (brand)
- [Matter over Wi-Fi](https://smarthomecanon.com/protocols/matter-wifi) (protocol)
- [Wi-Fi with local control](https://smarthomecanon.com/protocols/wifi-local) (protocol)
- [Wi-Fi through a cloud service](https://smarthomecanon.com/protocols/wifi-cloud) (protocol)
- [HomeKit](https://smarthomecanon.com/platforms/homekit) (platform)
- [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) (platform)
- [Google Home](https://smarthomecanon.com/platforms/google-home) (platform)
- [Samsung SmartThings](https://smarthomecanon.com/platforms/smartthings) (platform)
- [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) (platform)
- [Homey](https://smarthomecanon.com/platforms/homey) (platform)

## Sources

[^1]: Tapo S505D product page (tapo.com US). https://www.tapo.com/us/product/smart-switch/tapo-s505d/ (manufacturer, checked 2026-10-10)