I am replacing a light fixture in my bathroom and have the following setup:
- The electrical box is plastic
- The wire coming from supply has black (hot), white (neutral) and copper (ground).
- The light fixture comes with a metal bracket for attaching to the electrical box that has a green screw
- The light fixture has black, white and copper wires.
The instructions supplied with the fixture dont give me an example of how to wire it up if there is an existing ground wire coming from supply. It only tells me to attach the copper wire of the light fixture to the green screw. So I'm curious what I should do with the ground from the supply. Looking online, my options appear to be this:
So I think since the electrical box is plastic, I should just connect the ground of the supply with the ground of the light fixture with the wire nut. Do I need to connect both of them together with the green grounding screw on the light fixture as well, or would that only be if the electrical box was metal?