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electrical - Is it normal to have a light switch setup using only the hot wire? - Home Improvement Stack Exchange
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electrical - Add combo (switch and outlet) with only two wires out of wall for the current light) - Home Improvement Stack Exchange
How to replace an old (1980s) light switch that has 2 black wires and one red wire (plus ground) - Quora
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Light switch only has two black wires. Can I add an outlet without white (neutral) wire? : r/askanelectrician
![Thought I was replacing a 3-way switch but only two wires on the switches - DoItYourself.com Community Forums Thought I was replacing a 3-way switch but only two wires on the switches - DoItYourself.com Community Forums](https://www.doityourself.com/forum/attachments/lighting-light-fixtures-ceiling-exhaust-fans/90607d1518822492-thought-i-replacing-3-way-switch-but-only-two-wires-switches-img_0437.jpg)