I have a dimmer switch that requires 4 wires - line, load, ground and neutral. What are they? - Quora
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4-way switch wiring help - line and load in same box - Devices & Integrations - SmartThings Community
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Smart Switch Installation - Line Wire vs Load Wire - Neutral vs Ground Wire - Find Neutral Wire - YouTube
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Simple switch wiring - identify line, load and ground. Help! Installing KASA wifi switch : r/electrical
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