Ginger 4581-1/PC Columnar Single Ada Hall Light, Polished Chrome Available Finishes: Polished Chrome, Polished Nickel, Satin Nickel and Oil Rubbed Bronze - Hand Relieved Premium high grade material utilizing forged, machined and die cast manufacturing processes Compact florescent bulbs with a GU24 socket. Not interchangeable with any Edison screw-base bulbs, incandescent bulbs cannot be used with these lights UL Listed for Damp Locations. ADA compliant. May be installed with shade facing upward or downward.