It should pair and function without any app.
Use the “Technologies > zigbee” option when adding the device
and you might need to keep the sockets close to Homey, or close to a zigbee router in your zigbee mesh network (almost any mains powered zigbee device acts as zigbee router)
Also check for interference with 2.4GHz wifi signals and adjust the channels accordingly.
Wifi 2.4GHz signals can frustrate zigbee signals 'cause they’re 10x stronger in general.
Make sure to set the 2.4GHz channel to preferrably 1 or 6 or 11;
Next, perform a zigbee reset with Homey, it will choose the best zigbee channel automatically.
→ you’ll need to repair or re-pair currently connected zigbee devices ←
