I am having trouble with my contractor so the mirrors haven't been installed yet, but I bought them because my daughter purchased them for her bath remodel and likes them very much.  I did pull them out of the box to check for breaks and they were fine.  I also plugged them in and worked all the touch functions without a hitch.  I am still concerned they may not be bright enough so I am planning to add an adjustable LED can-light above the sink anyway.  It is wise to carefully examine the rear of the mirror if you have the option of choosing a location for the plug outlet on the wall like I will.  There is a small sweet spot to position the plug away from the electronics box and the heating element.  Pay attention to that if you buy this mirror.