I wanted to add LEDs with an external switch but also wanted the riser to remain modular to be removed for printer maintenance, etc. The difference between the 2 stock led bars and these LEDs is CRAZY! The only alterations I made to the OG sturdy riser are below. Both the switch and power connector fit like a glove. It's a tight spot so I just hooked the wires through the switch prongs and secured with heat shrink.
Parts I used are below plus 22 gauge wire, a splice, & some heat shrink I had already.
The author remixed this model.
Added a switch cutout to the power corner & tweaked the power cutout because it was too small.