I remade In3DSpace's model of LED light bar to fit on Ender 3 V2 and Ender 3 V2 Neo.
Bracket push fit into the upper profile of the printer. The process of putting the wiring together is the same as in original model.
Brackets are made to fit aluminium profile with outer dimensions 17,1 x 8 mm (check attached picture).
As seen in attached pictures, wire can be hidden inside of the printers profile and taped over with some black tape which makes it barely visable.
The author remixed this model.