White is ground, connect with red wire for high mode and function as backup/reverse lights
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White is ground, connect with black wire for low mode and function as tail/running/marker lights
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Each round trailer reverse light is in 5-1/8" Diameter x 1-3/16" deep and you may need to drill a hole about 4-1/2” to insert it in. Every round red tail light is sealed, corrosion resistant and IP65 waterproof;
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Of course, every round led trailer backup light is flush mount with required grommet and 3-prong plug; 12 super white in clear lens;
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