I was looking for a lantern for the front porch that would fit between the porch ceiling above and the house numbers below.  I wanted one that extended equally upward and downward from the electrical box.  This 12.5 inch lantern filled the bill.  When I received the unit, I had to realign the lantern, hanger strap and base such that they didn't look crooked with respect to one another.  This wasn't too hard because the parts are held together with nuts and bolts.