red sea reef led

Hi all, I'm looking to mount some secondhand Red Sea ReefLED 50's to my existing RMS rail to go alongside some xr15's. Does anyone know of an stl that might exist to print an adaptive bracket?

Does anyone have any information on these odd looking brackets at the bottom of these Red Sea RL90 mounting arms? I’ll add a photo of a set of original mounting brackets as well, but when I got these used, they had these other brackets attached that seem odd but seem almost stock to the arm.

When I came home from this weekend the light was off extremely dimmed. Which is unusual I check the power supply and the main block was hissing. I purchased a new one as I have had to do this multiple times. After plugging in the light the power supply light turned right on but the connection...