This is the arm off an outdoor wall lantern that I have. The wiring shorted and I want to replace it. I called the manufacturer and they were no help. No diagrams, no replacement parts, nothing. There are 3 wires...hot, common and bare ground. They seem to be about 16 AWG. The wiring only moves a little when I pull from either direction. I don't want to give it a hard pull until I have a good plan in place for getting the new wiring in there. It runs along the outside of the curve. The openings on either end are 4/10" round. Is there a secret to getting wiring through a curved object?

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Here's the lantern...

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