Cooper Lighting® 13W White 4-Pin 6500 K CFL Bulb at Menards®
TCP 32413T 13 Watt 4-Pin Triple Tube PL Lamp
GE CURRENT Plug-In CFL Bulb, T4, 4-Pin (GX24Q-1), Lumens 755 lm, Dimmable Yes, Watts 13 W - 1PGZ1|F13TBX/835/A/ECO - Grainger
Feit Electric 13-Watt Equivalent PL CFLNI Twin Tube 4-Pin G24Q-1 Base Compact Fluorescent CFL Light Bulb, Soft White 2700K (1-Bulb) BPPLD13E/HDRP - The Home Depot
13W Single Tube CFL Bulb 4-Pin Base (2GX7) 3000K Color Temp PL-13W3000K NEW!!! 653703600055 | eBay
Feit Electric 13-Watt Equivalent PL CFLNI Quad Tube 4-Pin G24Q-1 Base Compact Fluorescent CFL Light Bulb, Cool White 4100K (1-Bulb) BPPLD13E/41/HDRP - The Home Depot
Damar 26776A CFM13W/GX24q-1/841 13W CFL 4100K GX24q-1 Base