We have three of these. One shimmied too much I guess and the glass fell, shattering everywhere. I don't think I installed it incorrectly, however, the other two worked fine. Just be sure you tighten the glass well. Also, be sure to make the remote receiver codes different enough. Two of ours weren't different enough, and the remote from the playroom would turn on the light in our youngest son's room at all hours (even when it wasn't activated... it was odd). Once I fixed the remote codes, the problem stopped.