Supports:
brightness
action
Action types:
brightness up/down click/hold/release
move to color
move to colortemp
off
scene
toggle
on

Available from:
Amazon.de
Amazon.co.uk

Manufacturer:
Mueller-licht.de

Confirmed working with

Tasmota

You need to listen to the pre-configured group addresses 0x4004, 0x4005, 0x4006 corresponding to the 3 lights.

Example: backlog zblisten1 0x4004; zblisten2 0x04005; zblisten3 0x4006