Comments by "Laurence Fraser" (@laurencefraser) on "In Defense of the Switched Outlet" video.
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@Rickyp0123 if it's wired up the same way it is here (where it's very common to have a switch by the door and a switch by where the bed is expected to be in the master bedroom, or at each end of a passage way, or any other similar situation), the lights are On when both switches are in the same position and Off when they switches don't match. I've seen how the wiring for that works before, but I forget exactly.
And this bothered me enough that I went and looked it up:
First off, the circuit doesn't go power-switch-light-switch-power, as one might think, but power-switch-switch-light-power. Then it's really straight forward: The switches have their 'top' pins connected to each other, and their 'bottom' pins connected to each other. So when both are 'up', there's a complete circuit, when both are 'down', there's a complete circuit, and when one is in each position there is not.
The quote marks there are because it actually doesn't matter which way up the switches are. They can be sidewise, it doesn't change anything. Heck, you could have them up opposite ways (or, perhaps more accurately, wired 'backwards') and it wouldn't matter to the circuit (though, it would be a bit more confusing for the user, and potentially cause problems for anyone having to work on the thing again later).
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