List Of 2 Black Wires And One Gray Inside My Light Switch 2023. As the first post says. Web step 1 don a pair of protective rubber gloves before testing to find out which black wire is hot.

That cable's white wire is also connected to the switch and runs back to and is connected to the light. Web yes, you can have two black wires on a light switch, and in fact, using two black wires saves your outlet from overloading and short circuits. But, if you aren’t comfortable dealing with electricity, then your best bet is to call an electrician.