All 4 of my kitchen recessed lights quit working yesterday. I tried installing a switch but I have a black and white active nutted together.
I have two black wires one active one not and an active red. Copper is ground.
I can't figure out why they still don't work. The wires going into the light are black and white. Not getting a reading off of either of those. My understanding is to check the light closest to the switch.