LELLKI CM004 Compatibility
Overload Protection Switch 25A · switch Zigbee
The LELLKI CM004 (Overload Protection Switch 25A) is a Zigbee switch / relay from LELLKI. It controls a connected load or circuit, letting you automate lighting and powered devices from your smart-home hub. It's confirmed working across 2 platforms, including ZHA (Home Assistant), Zigbee2MQTT. Because it speaks standard Zigbee, the LELLKI CM004 pairs with any Zigbee coordinator once it's joined to one of the supported bridges above.
Compatibility at a glance
LELLKI CM004 is a Zigbee switch from LELLKI. It is compatible with: ZHA (Home Assistant), Zigbee2MQTT.
| ZHA (Home Assistant) | ✓ Supported |
| Zigbee2MQTT | ✓ Supported |
| deCONZ | ✗ Not supported |
| Zigbee2Tasmota | ✗ Not supported |
| ioBroker | ✗ Not supported |
| Zigbee for Domoticz | ✗ Not supported |
| iHost | ✗ Not supported |
Where to buy the LELLKI CM004
The LELLKI CM004 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).
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Recommended Zigbee coordinators
The LELLKI CM004 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 LELLKI CM004 work with Home Assistant?
Yes. The LELLKI CM004 is supported in Home Assistant — natively through the ZHA integration. It also works through Zigbee2MQTT.
Is the LELLKI CM004 compatible with Zigbee2MQTT?
Yes, the LELLKI CM004 is supported by Zigbee2MQTT.
What Zigbee hub do I need for the LELLKI CM004?
Any Zigbee coordinator paired with one of the supported bridges (ZHA (Home Assistant), Zigbee2MQTT) will let you use this device. A SONOFF Zigbee dongle or a ConBee II are common choices.