My 60 came without an AC button and just a DYI light bulb in its place. As I looked into it further this light connects to another DIY piece (rheostat?) and I’m not sure exactly what’s going on. I was hoping maybe I could get some insight. I purchased and installed an AC switch but the wires don’t reach to the place where the DIY solution plugs in. It’s all very confusing. I have some photos. I don’t think the forum allows for videos. I started at the light (that was attached where the AC button used to be) and followed the wires where they attached to the next piece. Then from there is goes to something else with a fabricated piece of metal and a knob (?).