We have several "stainless steel" lamps manufacturer Ranex attached (a total of 11 with us) in covered outdoor areas. At first everything seemed fine. After about 8 months, the first rust showed - now this is spreading more and more from and for the next winter hardly anything will be seen from the alleged stainless steel. It is pretty lamps, safe meet the indoors their function. For outdoor use, they are not suitable, because it does not concern steel but a lower quality material. Those looking for something for the outdoors, should rather spend a little more money for real steel.