answer:This doesn’t make sense. The ground wire is the bare-naked copper wire that’s a little thinner than the others. In addition to a ground wire, if any, there must be two regular insulated wires attached to the socket, usually some combination of black, white, or red. It doesn’t matter which is hot and which is neutral, just that there are two wires to the socket, neither of which is a ground. (What’s confusing is that neutral is sometimes erroneously referred to as ground in analogy to automotive or appliance circuits.) The switch likewise should have at least two regular conductors besides any ground wire, though 3-way switches have hookups for 3 wires plus ground. Switches normally switch hot, though they can be wired to switch neutral. For lights it shouldn’t matter. Does any of this fit?