Yep they can be replaced. Just a major disassembly process to do it. They are fastened with two small screws as seen vaguely in this picture.
This is how my lights look for the moment they come on. It's opposite when I swap the connections from top to bottom indicating the lamps are good.
I scoped the power inverter outputs
Top lamp (barely lights)
Bottom lamp (Fully lights)
Looks like the output transformer may be bad or a problem with ballast caps.
The driver input signals look ok.
Post more when I get back to it.