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What Usually Powers Trailer Lights  

Question:

What powers these type of lights in travel trailers? Is it the main battery, the AC power or an internal battery to the light itself?

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Expert Reply:

Depends on the application but for an RV most of the time a light like the # DI98VR is going to be powered by the main battery/AC power converter if it's like a utility light or a clearance light. If it's used as a turn signal it would be powered by the trailer wiring.

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Jameson C

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