Light Switch Wiring Colors. First of all we should connect the ground wires to the box. The usa follows a standard home electrical wiring color code that identifies every wire in an electrical circuit.
It seems that the old switch is connected with a ground and 2 white wires. Use toggle inserts to convert a decora opening to fit a toggle switch. How to wire a light switch learning how to wire a light switch is one of the basic skills that every homeowner should do.
If you’re stripping more than one wire gauge size, mark the holes in different colors.
Make sure the switch is clear of any debris and turn on the electricity at the main fuse box. Use toggle inserts to convert a decora opening to fit a toggle switch. With the power coming to the switch and then going to the lights, you will notice that there are two black wires, two white wires and two ground wires (bare wires). In the vanity light a white wire is tied to a black wire together those two wires goes to a single white wire at the light switch.