Since it is made of stainless steel and rubber packing is properly contained between the lens and the main body, durability such as rust prevention can be expected. Regarding irradiation ability, however, it does not reflect the light of the bulb at all from the shape of the thin body, and since cutting of the glass lens is not done at all, it is disappointing that it is almost nothing. If you use it as a "fog lamp" or "working light", you should buy a thicker matt lamp.
I bought it by saying that it is made of stainless steel, but even around stain it is not good for steel and screws to be attached. Since it can not be helped, I replaced it with a screw of stain. Although there is meaning of sten when you do it there! It was a bit disappointing.