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Replacing a Light Switch with 4 Wires - RedFlagDeals.com Forums
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electrical - 3 way switch with 3 black wires - Home Improvement Stack
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electrical - 4 wire switch with 3 wires in wall - Home Improvement
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Replacing a Light Switch with 4 Wires - RedFlagDeals.com Forums
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How to Install a Dimmer Light Switch: Wiring and Replacement
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Replacing a light switch | Light fitting
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2 Way light Switch Wiring Diagrams - YouTube
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How To Install A Light Switch With Four Wires