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Two Different Types of Wall Switches: Neutral Wire Switch and Single Live Wire Switch - SONOFF Official
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No neutral wire in add-on switch box - #54 by jhamstead - Devices & Integrations - SmartThings Community
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electrical - Why would a light switch be wired with the neutral wire? - Home Improvement Stack Exchange
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wiring - Upgrading to smart light switches but have only one neutral wire in the box - Home Improvement Stack Exchange
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