The materials and manufacturing quality of this product are extremely marginal relative to retail price. The wire clamps within the fixture were not engineered correctly and do not work with the size of wires provided. The lights themselves are poor quality ceramic (unfinshed white bisque). Mine cracked extremely easy when the mounting nut fell from my hand and struck one of them. The impact was marginal yet damaged the brittle, poor quality ceramic. Not worth the price. Find another manufacture or distributor.