I just purchased two more of these gorgeous lights for outside my front door.  I have identicle lights already there from when we built the house in 2005.  We live on the gulf.  The existing lights look remarkable good considering they are exposed to salt air 24/7.  They went through Hurricane Ike with no problems.  Unfortunately like so many valves, fittings, cable, electrical etc, we are having problems with the electrical now.  Once again I do believe it is where we live, and not the fault of the lights themselves.  I was thrilled to see Wayfair offered these and bought them the minute I got notice they were in stock. I'm attaching a picture of the 12 year old light.   I hope the new ones last another 12 years.