Simply Conserve G24Q/GX24Q horizontal PL 18-Watt EQ Single tube Daylight GX24Q-4 Pin Base LED Light Bulb (4-Pack) in the General Purpose Light Bulbs department at Lowes.com
LUXRITE 42-Watt Equivalent PL Horizontal LED CFL 2 Pin and 4 Pin Base G24D G24Q GX24Q 3 Color Selectable 1450 Lumens (2-Pack) LR24565-2PK - The Home Depot
Simply Conserve G24Q/GX24Q Vertical PL 18-Watt EQ Single tube Daylight GX24Q-4 Pin Base LED Light Bulb (4-Pack) in the General Purpose Light Bulbs department at Lowes.com