The author remixed this model.
I wanted to incorporate this awesome LED Light bar design into my Ender 3 V2, so I made a bracket that works for LH and RH.
I have an M4 hole that can be used for a T-nut fixture to the vertical extrusion, but I found it works without it as well.
Note: you will need some M3 screws (M3x10 or longer should suffice)