It took way longer that it should, but I have managed to complete my LED fridge lighting project. This was to replace the single bulb at the top of the fridge with a strip of LED lights around the top and sides of the fridge. I found an old power supply I think it was a laptop brick, that would do 12 volts reasonably. Replaced the IEC connector with a screw connector, and presented the 12v output on PCB mount screw connectors.
Next was a replacement cover, this I designed in OpenSCAD to cover over the power supply and replace the moulded lamp cover that was there before. Then an 10 hour 3D print run to create the cover. Although there were a few minor mistakes the cover worked pretty well first time so I didn’t have to do a reprint.
The LED lighting is a big improvement, the whole fridge is illuminated and because the light is coming from different angles no shadows, and even illumination. The only down side is that the power supply can take a second to come up after opening the door. The fridge does have a temperature management system and a LCD display, so presumably there is some low voltage floating around there, that I could have used. But that would have meant much more disassembly and potential breakage of the fridge.