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4 Wire Car Fog Light Switch, DC 12V On-Off Push Button Switch Foglight Switch, Yellow Indicator : Amazon.co.uk: Automotive
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electrical - Replacing switch with dimmer switch - 2 red wires and 1 yellow wire - Home Improvement Stack Exchange
I just installed a multi-mode LED light bar on my truck, which has 3 wires: red, black, and white. What does the white wire do? - Quora
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