Westinghouse 0612900 18 Watt Double Twin Tube CFL Light Bulb 4100K Cool White G24d-2 Base
VIRIBRIGHT Virihome 18-Watt EQ Single tube Soft White G24d-2 Pin Base LED Light Bulb (6-Pack) in the General Purpose LED Light Bulbs department at Lowes.com
Osram Dulux D G24d-2 18W 840 4000K 1200lm Fluorescent Lamp
Dulux 18W G24D-2 3500K Lumilux White Compact Fluorescent 2-Pin Lamp