Feit Electric 27-Watt Linear CFLNI PL Fluorescent Quad Tube 4-Pin Plug-in GX10Q-4 Base Compact CFL Light Bulb, Daylight 6500K (1-Bulb) BPPL27F/65K/HDRP - The Home Depot
27 Watt 277V Mogul Base Compact Fluorescent Spiral Light Bulb – Green Electrical Supply
Goodlite® G-10843 13-Watt CFL 60 Watt Replacement 900-Lumen T2 Spiral Light Bulb 12,000 Hour Life Daylight (Case of 25) - White - On Sale - Bed Bath & Beyond - 7632265
FML Lamp 27 Watt Replacement Quad CFL for Floor Lamps by Lumenivo - 3000K Warm White Plug-in 27W Fluorescent Bulb with 4-Pin GX10Q-4 Base - 2 Pack - Amazon.com
Feit Electric 27-Watt Linear CFLNI PL Fluorescent Quad Tube 4-Pin Plug-in GX10Q-4 Base Compact CFL Light Bulb, Daylight 6500K (1-Bulb) BPPL27F/65K/HDRP - The Home Depot
ALZO 27W Joyous Light Full Spectrum CFL Light Bulb 5500K, 1300 Lumens - ALZO Digital
Mandala Crafts FML27 27-Watt 6500 K Compact Fluorescent Light Bulb with Quad Tubes, 4-pin, GX10q-4 Base; 2 Pack - Amazon.com