I ordered 4 of these - 1 for each side of 2 mirrors in the master bath.   I tried regular 60-watt incandescent bulbs and 40-watt halogen bulbs.  I like the cleaner light of the halogen bulbs better and since the space in my master bath is not large, the 40-watt halogens provided sufficient light.  I also have the sconces on dimmers - they do not hum and provide nice mood lighting.