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A Shot in the Dark: A Creative DIY Guide to Digital Video Lighting on (Almost) No Budget by Jay Holben

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Understanding the Switch

Before you jump into the next project, it’s important to understand the function of a switch, as you will be incorporating them—in addition to dimmers— in several of the upcoming projects. Later, some of the wiring starts to get more advanced and will require a fundamental understanding of what is really going on.

A switch, for all intents and purposes, is an interruption device that stops or allows the flow of electricity to a component downstream of the switch (as discussed in Chapter 4, “Understanding Electricity,” a breaker is really just an automated switch). When the switch is off (also called “open”), it breaks the connection inside the switch to stop the flow of electricity downstream. When the switch is turned ...

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