![electrical - Replacing switch with dimmer switch - 2 red wires and 1 yellow wire - Home Improvement Stack Exchange electrical - Replacing switch with dimmer switch - 2 red wires and 1 yellow wire - Home Improvement Stack Exchange](https://i.stack.imgur.com/Zzb4F.jpg)
electrical - Replacing switch with dimmer switch - 2 red wires and 1 yellow wire - Home Improvement Stack Exchange
![Old Cable Colours Pre 2004 In 2 Way Switching and a Feed (Supply) to a Switch for an Outside Light - YouTube Old Cable Colours Pre 2004 In 2 Way Switching and a Feed (Supply) to a Switch for an Outside Light - YouTube](https://i.ytimg.com/vi/w8PcvgZuYfw/maxresdefault.jpg)
Old Cable Colours Pre 2004 In 2 Way Switching and a Feed (Supply) to a Switch for an Outside Light - YouTube
I just installed a multi-mode LED light bar on my truck, which has 3 wires: red, black, and white. What does the white wire do? - Quora
![Replacing old light switch with Lutron Smart Dimmer switch. I have one yellow wire and one red wire. Do they both just connect to the black wires on the switch and do Replacing old light switch with Lutron Smart Dimmer switch. I have one yellow wire and one red wire. Do they both just connect to the black wires on the switch and do](https://i.redd.it/ez4ae7hcilm51.jpg)