Feiss Dakota OL760 Outdoor Wall Light

I actually have three. All three are different size. Unfortunately, after about four years, one which gets direct afternoon sunlight for about 5 hours per day, the color in the glasswork is beginning to display cracks which resemble a spider web. It was nice while it lasted but should have lasted longer.

After 4 years , the glass amber coloring started to crack. The glass itself is fine. The coloring coating the glass which gives it an amber color is cracking. gets about 4 hours of direct sunlight. I have two other identical lamps and they are in the shade and are fine.