Why would light switch manufacturers write the words on and off on their switches? Is it not obvious if the light is on or off? - Quora

Why do some switches require a neutral wire? - Quora

What does the “O” and “I” mean on a switch? - Quora

Why would light switch manufacturers write the words on and off on their switches? Is it not obvious if the light is on or off? - Quora

Can a basic looking light switch turn itself off? - Quora

How to identify wires in a light switch - Quora

Why do some timer switches require a neutral connection and others don't? - Quora

Why do light switches traditionally have up as on and down as off? Is there any rationale behind this? - Quora

What is a name for a circuit that consists of several lights paired with its switch that if one is pressed on the other will turn off? - Quora

Why isn't this replacement switch turning my living room light on? The old switch (1940s) was arcing, so I replaced it. (Pics in comments) - Quora

Can using your circuit breaker as a light switch as many as 10 times a day compromise its' ability to work when necessary? Can this usage wear the mechanism out? - Quora