I attached this to the side of the solar generator box (Pelican case). Seems to be working fine. I connected some solar extension cables and they fit perfectly, one end of the cable was bare and the other end had MC4 connectors. I haven't used it in the rain so I can't comment on the weather protection. The 3M tape seems to be holding up well. Just to be sure, I used three screen holes to secure it even more.