Cool 2 Red Wires 1 Black Light Switch 2023. Simple switches use a black (hot) and another wire, usually black, red or blue (switched hot) to make and break the circuit. Thinking about it, it may have been 2 blacks and 1 red, but either way there are only the two colours.
Web light switch with 2 black and 1 red wire hi. Web when you see a red wire in a light switch box, it can mean two things. I would like to replace the ceiling lamp with a ceiling fan.
