A light switch is the simplest of electrical devices. Flip the switch, electricity flows. Flip it again, electricity stops. Lights on, lights off. That’s great for a small room with one entrance.
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And you can do it safely, in under an hour, and for less than $50. Credit... Supported by By Tim Heffernan Visuals by Clark Hodgin After 16 months, my home renovation is nearing a happy milestone: ...