Apr 28, 2015 - This is a diagram of a switch with a neutral. The black 'hot' connection is broken to turn the light on/off, the white 'neutral' connection completes the circuit. The bare (hopefully) solid copper wire is the ground. Wiring a 2-way Switch, I Can Show You How to Change or Replace a Basic On/Off 2-Way Switch. . Basic 2-way Switch Wiring Diagram . 2-way switch (shown in off position) and then to the light and returns through the neutral wire (white). Jul 29, 2016 - The best part of wiring light switches is that you can do it yourself. Read this . The neutral wire connects to the source as well as the ground. There are a few options for installing smart switches without a neutral wire, but first let's check to see . Here is a diagram of a standard switch with a neutral wire:. Clear, easy-to-read diagrams for household electrical light switches with wiring . The red and black are used for hot and the white neutral wire at the switch box . How to wire 3-way switches using NM (Romex) cable with wiring diagrams included. . No longer allowed after 2011 NEC (if no neutral wire in switch boxes) . Alternate (California Style) Light Switch Wiring Diagram. Switch terminal . light fixture box. Both line and neutral travel from the switch box to the light fixture box. What to do if you don't have a neutral wire? What if I don't know how to find the neutral wire? Smart Home has provided these answers for you in our solutions .