Remixed this to fit longer LED strips that are lower cost. I used 2 of these from ebay, 24V, 48 LED, 13" long. Please check what voltage your printer uses. My MK3s is a 24v supply.
Be careful if ordering the switch from Amazon, the ones I received were larger than specified. In the end I got them from Digikey.
All the assembly and wiring is the same as the original design. There is less room for wires, so plan accordingly.
0.4mm Nozzle, 0.15mm Layer
I used default Slic3r, 0.15mm Quality MK3 with Prusament PLA Selected.