I didn't know how much I needed this mirror until I plugged it in and turned on the light!  Let's face it, none of our bathrooms have great lighting and this is a tremendous improvement in mine.  I included a pic of the back of the mirror to indicate the location of the plug.  For homes who have outlets in the wall, it is probably just right.  My house has outlets on the baseboards and wall mount installation was a little different.  This won't be an issue if you are using this as a freestanding mirror.