There is currently (ending soon) Kickstarter campaign for “Lightpack 2” which is kind of custom ambilight with enhanced features and optionally full support for 4K (UHD) https://www.kickstarter.com/projects/woodenshark/lightpack-2-ultimate-light-orchestra-for-your-livi
After discussion with Creator regarding OpenHAB and asking for open API I’ve got the following message from the Creator of this product:
_Thank you very much for your comments and suggestions. _
We will provide an API for sure and we are aware of OpenHAB. We are ready to connect you with our developers who are responsible for an API. Are you interested?
_You always can write us email@example.com _
Do not hesitate to ask us any questions.
_Best wishes, _
Unfortunatelly I’m not a developer… However maybe there is someone else who backed this project and want/is able to write binding for it?