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

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Why do some automatic light switches need a common wire while others don't? - Quora

If there's a light switch that doesn't seem to do anything, what does it mean? Does it actually do something that I just can't physically see? - Quora

Why do most light switches point up when the light is on and point down when the light is off? - Quora

On a 3 way switch, usually both switches are in the same position in order for the light to cut on. Either Up, Up or Down, Down but I have seen them

Why do most light switches point up when the light is on and point down when the light is off? - Quora

Can I convert a 3 way lighting circuit into a 2 way circuit and eliminate one of the switches? - Quora

What are some reasons why we need to throw light switches? - Quora

How to tamper with a light switch that needs a key to open - Quora

Why do US light switches work in the opposite direction to those used in the UK? - Quora

If there's a light switch that doesn't seem to do anything, what does it mean? Does it actually do something that I just can't physically see? - Quora

What qualifications would allow replacing a light switch in AU? Not rewire a whole house, want a course to change light switches legally. Hoping I don't need a 4-year apprenticeship but would