GoodBulb 18 Watt CFL Light Bulbs | 4 Pin G24Q-2 Base 4100K Cool White | 18W High Output 1200 Lumens | Double Tube Compact Fluorescent Light Bulbs Plug-in | Long Term Care Lighting | 10 Pack - Amazon.com
Feit Electric 18-Watt Equivalent PL CFLNI Triple Tube 4-Pin GX24Q-2 Base Compact Fluorescent CFL Light Bulb, Soft White 2700K (1-Bulb) BPPLT18E/HDRP - The Home Depot
Utilitech 18-Watt (75W) BR40 Medium Base Daylight (5000K) CFL Bulb at Lowes.com
18 Watt CFL Light Bulbs | 4 Pin GX24Q-2 Base 6500K Full Spectrum | 18W High Output 1200 Lumens | Triple Tube Compact Fluorescent Light Bulbs Plug-in | 10 Pack by GoodBulb - Walmart.com
Philips 18W 4 Pin G24q2 Very Warm White Double Twin Tube CFL Bulb | PL-C 18W/827/4P/ALTO (4 Pin) | Bulbs.com
Feit Electric 18-Watt Equivalent PL CFLNI Quad Tube 4-Pin G24Q-2 Base Compact Fluorescent CFL Light Bulb, Soft White 2700K (1-Bulb) BPPLD18E/HDRP - The Home Depot