At the moment I have a reading lamp plugged in beside my bed that is if it is even plugged in! ( No clock as I am never here I stay at the G/F's place all the time) The lights in the wall unit I have are plugged into the existing circuit but the stereo and T.V plug into an isolated ground circuit I ran up there years ago to pick up the electronics in my room and my brothers room. Iso ground is not needed for my stuff but my bro has all sorts of fancy guitar amps and things so I figured why not and ran all of it on one iso ground circuit.