Just picked up this Delta 12" Disk Sander. It's a 3-phase with a mechanical switch. I'll be running it off a VFD, but I'll keep the switch on to keep the originality. Can someone help identify this lamp that came with it? It looks like original to the machine. It's got the right shade of grey. There's no model number to id it. I haven't seen this at all while searching online as well as looking at past Delta catalogs. Note how it attaches to the electric box.