Classy Caps SL079C Plated Prestige Solar Post Cap, 4 x 4, Copper by Classy Caps

OK, I got snookered. I paid $80 for this light that I can but for $35 at multiple sites. I thought this would be copper or copper plated metal. It's plastic. Won't last long in the AZ sun. The adapter for a 3.5 x 3.5 post is too big for that size post making it hard to get a good level mount. Now I need to figure a good way to get a level mount. It does work. but way over priced and too many mounting problems