Product review (3 stars): your Tesla adapter will be upside down causing unnecessary strain on this and the Tesla cord
It works, but I bought this for charging my Tesla.  Installed right side up, your Tesla adapter will be upside down causing unnecessary strain on this and the Tesla cord.  Wound up just doing the surface mount.  Don't get this unless you can live with it upside down, or whatever you are plugging into it wouldn't put strain on it.