I purchase 2.  for each side of our king bed. These are a perfect fit.  Not to small and not too big.  I love how the arm swings all the way to the left and to the right.  I also like the on off switch which is hidden.   On Off switch is on the tip at the end of the lamp.  You simply twist the tip to turn on and off.

Pros: Uses full size bulbs.  no finger prints.
Cons: none