This little LSU desk lightbox is roughly 2.5" x 5" x 1" (Feel free to scale it to a larger size)

I used 5v led light strips and soldered on a USB pigtail. Both are linked below.

Make sure you pass your pigtail through the backing of the lightbox PRIOR to soldering to your light strip

The backing can have a thin line of super glue applied to keep in in place.

5V LED lights - https://amzn.to/3UuCUD1 *pre fit led strip prior to cutting for best lighting

USB Pigtails - https://amzn.to/3y6K4py

Soldering kit - https://amzn.to/44qs4T6

Happy printing!