Sprayed a couple low voltage LED Wall Washer landscape fixtures with Zinc Galv spray to help corrosion proof them.
I did this to a couple last year and so far they show zero signs of corrosion.
If I could get these in plastic, PVC, or fiberglass - I would.
The powder coated aluminum units aren't too band.
Either way.....it pays to be proactive when you're on the coast!