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by JohnFen
920 days ago
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(US here) -- I remember to install light switches so that the up position is "on" because of a faulty light switch I had decades ago -- the spring holding the position was broken so that, over time, gravity would eventually make it fall to the lower position. Having the lower position be "off" seems like a good failsafe for that sort of thing. I don't know if that's why the convention, but it is the mechanism that I use to remember what the convention is. |
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