Just paired this (like a breeze I might add) but it came up as a Generic Zigbee Outlet which I don't know if I should mess with or leave well enough alone. Just started researching in Community, which brought up your post.
- endpointId: 01
- model: ZB-SW01
- powerCluster: none
- application: 04
- manufacturer: eWeLink
Instructions call this: Zigbee 7-32V Model: ZG-001
Came from Amazon at a markup to what you found:
""MHCOZY 1 Channel 5V 12V ZigBee Smart Relay Switch,
Adjustable Selflock and Momentary Working Mode""
Obviously this is the typical 'one manufacturer many labels/many sellers' gig.
This seller: Mic technology co.,ltd.
Seems another Hubitat Community Mbr Andrew has it up as well.
https://smile.amazon.com/dp/B08X218VMR?psc=1&ref=ppx_yo2_dt_b_product_details#customerReviews
Whoops, just saw the mainline thread on this family of Zigbee relays.