Older homes sometimes lack a neutral wire (which is typically white) in every box where a light switch is installed. That can be big problem for smart switch upgrades, which almost universally require ...

This article discusses many common misunderstandings about the function of the neutral wire and its relation to power problems. The subjects of dedicated lines, phase reversal, isolation transformers, ...

There's often a sense of underlying stress when you're testing colors that are neutral, especially when the wall you're testing them on is white. Sure, you may think beige is just beige, but the ...