Lerlink A2-ZH20 Compatibility
Boiler Switch 20A 4400W EU · switch Zigbee
The Lerlink A2-ZH20 (Boiler Switch 20A 4400W EU) is a Zigbee switch / relay from Lerlink. It controls a connected load or circuit, letting you automate lighting and powered devices from your smart-home hub. It's confirmed working across 6 platforms, including ZHA (Home Assistant), Zigbee2MQTT, deCONZ and more. Because it speaks standard Zigbee, the Lerlink A2-ZH20 pairs with any Zigbee coordinator once it's joined to one of the supported bridges above.
Compatibility at a glance
Lerlink A2-ZH20 is a Zigbee switch from Lerlink. It is compatible with: ZHA (Home Assistant), Zigbee2MQTT, deCONZ, Zigbee2Tasmota, ioBroker, Zigbee for Domoticz.
| ZHA (Home Assistant) | ✓ Supported |
| Zigbee2MQTT | ✓ Supported |
| deCONZ | ✓ Supported |
| Zigbee2Tasmota | ✓ Supported |
| ioBroker | ✓ Supported |
| Zigbee for Domoticz | ✓ Supported |
| iHost | ✗ Not supported |
Where to buy the Lerlink A2-ZH20
The Lerlink A2-ZH20 is widely available on Amazon in the US, UK, Canada and across Europe. Prices and stock vary by region — the link below opens results for your local Amazon store.
⚡ Check your region: in-wall devices follow local wiring standards — pick the version sold for your country (US/UK/EU).
🔎 Find the Lerlink A2-ZH20 on Amazon →As an Amazon Associate, WillItPair earns from qualifying purchases. This doesn't affect what you pay.
Recommended Zigbee coordinators
The Lerlink A2-ZH20 needs a Zigbee coordinator (USB stick) to join your network. These are the ones we'd buy:
As an Amazon Associate, WillItPair earns from qualifying purchases. This doesn't affect what you pay.
Frequently asked questions
Does the Lerlink A2-ZH20 work with Home Assistant?
Yes. The Lerlink A2-ZH20 is supported in Home Assistant — natively through the ZHA integration. It also works through Zigbee2MQTT.
Is the Lerlink A2-ZH20 compatible with Zigbee2MQTT?
Yes, the Lerlink A2-ZH20 is supported by Zigbee2MQTT.
What Zigbee hub do I need for the Lerlink A2-ZH20?
Any Zigbee coordinator paired with one of the supported bridges (ZHA (Home Assistant), Zigbee2MQTT, deCONZ, Zigbee2Tasmota, ioBroker, Zigbee for Domoticz) will let you use this device. A SONOFF Zigbee dongle or a ConBee II are common choices.