I have kichler outdoor lights made of aluminum with bronze coating. They have a bluish film. How to fix?

do kichler aluminum outdoor lights oxidize and cause a bluish film. If yes how do I fix.

These lights were coated by the manufacture with bronze so they would get a blueish patena on purpose. It is for this “look” to make them look old.
However if you want them to look like they did when new, check out a coin dealer and ask him for coin cleaner or use Tarn-X at your local hardware store. Follow the directions and when cleaned spray paint a clear finish to your work to protect it from happening again.

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