Draw Electronic Schematics with CadSoft EAGLE

Step 7 Add lamps

When you have parts that aren't going to mount on your actual PCB anyway, such as control knobs and battery packs and switches and lightbulbs and such, you of course have a lot of flexibility in how they are portrayed on the schematic and PCB. You can use single pins for each wire, or find a part whose drawing isn't too obnoxious that has pins of appropriate size and shape for attaching wires as well as an actual component.

The eagle library has *A* "lamp" part. It says it's actually an LED holder, but the drawing is OK and the part has pins suitable for attaching wires that go to off-board lamps, so it looks fine for our purposes.