I bought a few packs of these strips so I could hang some lights around the edge of my mothers patio. The lights were just your standard small bulb lights, nothing heavy at all. I spaced them about 1 per every foot then hung the lights. About 2 days later all the clips wouldn't stick anymore and the lights were on the ground. It is the middle of summer but the package says up to 125 F so I'm not sure what the issue was. Oh and I made sure to clean and dry the surface of the metal patio cover before I hung the lights. Disappointed.