UK light box, it will use almost all of the possible build volume. I make my boxes with a power switch, plug, and ac adapter for a cleaner more professional look. I also included my light box profile which helps to eliminate pinholes and wisps so feel free to try that out on the front plate. For the base and back I tend to just use the base bambu .20mm height profiles. I will include links to the hardware I use for mine. I included a solid backplate for you to use add a negative modifier for whatever light setup you already have as well.

AC Adapter: https://amzn.to/47WA4v4

Female Plug: https://amzn.to/48XxIxr

Super Bright LEDs: https://amzn.to/3SyCX0F

Switches: https://amzn.to/4bb2zrT