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Glossary

This glossary includes definitions of many terms used in home repair and home improvement.

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A normally-closed switch -- with a light receptor -- that opens, and stops the electricity from going further, if there is enough light entering its receptor. When there isn't enough light, it closes and the power is sent through.

Synonyms: photo cell
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In electrical work, a term used to refer to a short piece of wire used to terminate and connect a device - such as a switch or a receptacle - to a set of wires.

Examples: If you have more than one hot, neutral or ground conductor in the box, you should probably use a pigtail to connect your device to each set of wires.

See also: ground wire, hot wire, neutral wire