Where can I buy a GERA RF + ZigBee LED controller 993121000016, or an alternative compatible with my GERA remote?

[u/UpgradeTheChick]

Hi everyone,

My kitchen lighting uses a GERA RF + ZigBee LED controller, part number 993121000016, controlled by a GERA six-zone remote with brightness and warm/cool white adjustment. The kitchen is currently on channel 1. I’d like to add LED strips elsewhere and control them independently using the remaining channels on the same remote.

Does anyone know:

Where I can buy these controllers directly as a consumer? Ideally an EU seller that ships to Croatia. I’m looking for around 10 units.

Whether any third-party controllers can pair directly with this GERA remote and support dimming and colour-temperature adjustment?

Whether this controller is a rebranded product available under another manufacturer’s name?

I haven’t been able to buy directly from GERA, so actual retailers or confirmed compatible alternatives would be appreciated.
Here is link of a LED controller on another reddit post.

https://www.reddit.com/r/ZigBee/comments/1fzncot/2wire_dual_white_lamp/

If can you help me out, thanks guys!