This is a LED lamp for 3D printers. The lamp is mounted on the frame of the 3D printer. This lamp is powered from printer's USB or USB charger. It mounts on the Z axis using T-nut and M4 screw. You can use a most of USB lights for this project (for example this: https://www.aliexpress.com/item/1005002433720978.html or this: https://www.aliexpress.com/item/1005002759064533.html). If you don't have a T-Nut, you can print it (https://www.printables.com/cs/model/277822-t-nut-for-prusa-frame).
I printed it with Prusa Galaxy Black PLA. I recommend to use brim for LedHolder.
The author hasn't provided the model origin yet.