Feit Electric 13W/18W/26W Equivalent PL Vertical 4-Pin Universal Base G24Q/GX24Q-1/-2/-3 with CCT Select LED Light Bulb(4-Pack) PL26AVCCT/LED /HDRP/4 - The Home Depot
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
PHILIPS 008472 - Master PL-L 18W/840/4P Single Tube 4 Pin Base Compact Fluorescent Light Bulb - 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
Philips 18W 4 Pin G24q2 Very Warm White Double Twin Tube CFL Bulb | PL-C 18W/827/4P/ALTO (4 Pin) | Bulbs.com