I currently have a ceiling light that has the power at the light. It is switched with a single pole and both white and black wires are connected to the switch. The white is hot. I take it there is no neutral in this case. I want to gang up a second switch to power a new light in a nearby closet. How do I jump power to the second switch?
Electrical – How to run power from an end-of-run light switch to a second switch
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Best Answer
Can't be done, without installing more wires.
What you have is known as a "switch loop". An ungrounded (hot) conductor goes to the switch, and a switched ungrounded (hot) conductor comes back from the switch. There's no grounded (neutral), so no way to extend the circuit.