Quiz: The Ultimate Three-way Switches Quiz
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The Ultimate Three-way Switches Quiz
By: Staff
Image: refer to hsw

About This Quiz

You are ready for bed and want to walk up the stairs to the bedroom. At the bottom you flick a switch to turn on the stairway lights and when you get to the top there is another switch to turn the same lights off. It's thanks to three-way switches that you can do this. Learn all about these special switches by taking this quiz.

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