I love this light for its shape, the way it looks when it’s lit (it takes on a darker hue), and how it adds a different dimension and gives some relief from all the straight lines in my home.  It’s from Design Within Reach (though I think it’s no longer available).  But it’s actually too small in scale for the room.  That became particularly noticeable after I renovated the kitchen and opened up the wall between the kitchen and dining room.    This led me to do some research on what the design guidelines are for lights.  Here’s what I have found.