Led Strip Light
Is what I did safe and appropriate?
I installed an LED strip light above a counter, below a cabinet. On the wall behind the counter is a two gang switch for an overhead light and for a garbage disposer. About 3 feet horizontal distance from that is a one gang box holding an outlet.
I bored a hole into the tile covered wall behind the counter and snaked a short length of NM cable from beneath the cabinet to the two gang box with the two switches in it. There is a three conductor cable coming from the disposer with a white, black and red wire it. The white is neutral, the black is hot, and the red carries switched power back to the disposer; I could not find a ground in this cable. The cable to the overhead light has a black wire for switched power, a white connected to the white of the disposer cable, and a clipped off bare ground wire. The switch to the light gets its power from the disposer hot wire.
The LED light requires a ground - but there's no ground in the box that I could find. I fished a bare 12 gauge ground wire from the outlet 3 feet away and used that to ground the LED light. The disposer and this outlet are on *different* circuits. Everything works, and I verified that the LED light is grounded by verifying 125 volts from a hot wire to the LED light metal case.
What's bugging me is the bare ground wire I fished through the wall. Is this setup OK???