GoodBulb 13 Watt Compact Fluorescent Bulb - 2700K Warm White Light Color - Ultra Mini Spiral CFL Light Bulbs - E26 Base, 2 Pack - - Amazon.com
Sleeklighting 23 Watt Spiral CFL Blue Fluorescent Light Bulb Medium Base UL-Listed (2 Pack) - Walmart.com
Utilitech Compact Fluorescent Bulb 60-Watt EQ Spiral Soft White Light Fixture CFL Light Bulb (4-Pack) in the CFL Bulbs department at Lowes.com
Xtricity Compact Fluorescent Light Bulb T2 Spiral CFL, 2700k Soft White, 9W (40 Watt Equivalent), 540 Lumens, E26 Medium Base, 120V, UL Listed (Pack of 4) - - Amazon.com
Compact fluorescent lamp - Wikipedia
A Guide To Compact Fluorescent Lamps (CFL) & Fluorescent Tubes - The Lightbulb Co. UK
Are Compact Fluorescent Lightbulbs Really Cheaper Over Time? - IEEE Spectrum
CFLs vs. Incandescents: Facts about Compact Fluorescent Light Bulbs
Feit Electric 7-Watt Equivalent PL CFLNI Twin Tube 2-Pin G23 Base Compact Fluorescent CFL Light Bulb, Soft White 2700K (1-Bulb) BPPL7/HDRP - The Home Depot
Compact Fluorescent Lights | Philips lighting
Fluorescent Bulb, 30W | Fovitec USA
GE 16/25/32W 3 Way CFL Spiral Soft White Compact Fluorescent bulb – BulbAmerica