# ThirdReality Smart Color Bulb ZL2 [A21]

*ThirdReality / ZL2*

> The Smart Color Bulb ZL2 is an A21 bulb for 100 to 130 VAC. It puts out 1600 lumens, runs on Zigbee 3.0, and does 16 million colors and 2700 K to 6500 K tunable white. It repeats the Zigbee signal too. It suits HomeKit, Google Home, Alexa, SmartThings and Home Assistant users through an integration (a Matter bridge).

- Canonical page: https://smarthomecanon.com/devices/thirdreality-smart-color-bulb-zl2
- Last checked: 2026-10-20

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [ThirdReality](https://smarthomecanon.com/brands/thirdreality) |
| Category | Bulb |
| Model numbers | ZL2 |
| Status | Current[^1] |
| Base | unknown |
| Shape | A21[^1] |
| Light output | 1600 lm[^1] |
| Type | Bulb[^1] |
| Radio | Zigbee 3.0[^1] |
| Power | Mains, 100-130 VAC[^1] |
| Hub needed | Zigbee hub required[^1] |

## Integration paths

**How the ThirdReality Smart Color Bulb ZL2 [A21] connects**

| Path | Requires | Local | Features lost |
| --- | --- | --- | --- |
| [Matter via Bridge](https://smarthomecanon.com/protocols/matter-bridged) | ThirdReality Smart Bridge MZ1 (sold separately)[^1] | unknown | unknown |
| [Zigbee](https://smarthomecanon.com/protocols/zigbee) | A Zigbee hub or an Echo device with a built-in Zigbee hub[^1] | unknown | unknown |

**Platform support for the ThirdReality Smart Color Bulb ZL2 [A21]**

| Path | Platform | Support | Integration |
| --- | --- | --- | --- |
| Matter via Bridge | [HomeKit](https://smarthomecanon.com/platforms/homekit) | Via integration[^1] |  |
| Matter via Bridge | [Google Home](https://smarthomecanon.com/platforms/google-home) | Via integration[^1] |  |
| Matter via Bridge | [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) | Via integration[^1] |  |
| Matter via Bridge | [Samsung SmartThings](https://smarthomecanon.com/platforms/smartthings) | Via integration[^1] |  |
| Matter via Bridge | [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) | withheld |  |
| Zigbee | [Amazon Alexa](https://smarthomecanon.com/platforms/alexa) | Native[^1] |  |
| Zigbee | [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) | Via integration[^1] | ZHA or Zigbee2MQTT |
| Zigbee | [Samsung SmartThings](https://smarthomecanon.com/platforms/smartthings) | Via integration[^1] |  |
| Zigbee | [Hubitat Elevation](https://smarthomecanon.com/platforms/hubitat) | Via integration[^1] |  |
| Zigbee | [Homey](https://smarthomecanon.com/platforms/homey) | Via integration[^1] |  |

## Related pages

- [ThirdReality Zigbee plugs, switches, lights and blinds](https://smarthomecanon.com/lines/thirdreality-zigbee-plugs-switches-lights-and-blinds) (line)
- [ThirdReality](https://smarthomecanon.com/brands/thirdreality) (brand)
- [Matter through a bridge](https://smarthomecanon.com/protocols/matter-bridged) (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)
- [Samsung SmartThings](https://smarthomecanon.com/platforms/smartthings) (platform)
- [Home Assistant](https://smarthomecanon.com/platforms/home-assistant) (platform)
- [Hubitat Elevation](https://smarthomecanon.com/platforms/hubitat) (platform)
- [Homey](https://smarthomecanon.com/platforms/homey) (platform)

## Sources

[^1]: Smart Color Bulb ZL2 [A21] - ThirdReality store. https://www.thirdreality.com/products/smart-color-bulb-zl2 (manufacturer, checked 2026-10-12)