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
Compact Fluorescent 13w Mini Twist Red Light Bulb – BulbAmerica
CFL vs. LED vs. Incandescent Light Bulbs - Ideas & Advice | Lamps Plus
DYSMIO 13 Watt CFL Light Bulbs 2 Pin GX23 Base 2700K Soft White 13W High Output 800 Lumens Single Tube Compact Fluorescent Light Bulbs Plug-in 4 Pack - Amazon.com
Xtricity Compact Fluorescent Light Bulb T2 Spiral Light Bulbs CFL, 4100k Cool White, 9W (40 Watt Equivalent), 540 Lumens, E26 Medium Base Bulb, 120V, UL Listed (Pack of 4) - Amazon.com