Just a heads up that the the latest firmware 3.3.5 blocks a lot of dial capture units.
If the HKC panel sees anything under 30v or so you will get a line fault error. MiniAir units and their clones seem to be impacted
Any links to a specific model. I looked at some 50W lights in my local suppliers and the earth was not connected in them, would have expected that from cheap ebay tat but not a local bricks and mortar shop
It's just a standard 230/18v AC transformer. Here's one on ebay
Just make sure the trafo meets the relevean IEC BS standards and you should be fine.
I wouldn't bother swapping the panels, speak to your local rep about upgrading the firmware