Feit Electric 13W/18W/26W Equivalent PL Horizontal 4-Pin Universal Base G24Q/GX24Q-1/-2/-3 with CCT Select LED Light Bulb (4-Pack) PL26AHCCT/LED /HDRP/4 - The Home Depot
LED PL/CFL Plug 'N Play Replacement for 4-pin bulbs in electronic ballast fixtures - All G24Q bases
Technical Precision 9 Watt Self Ballasted U Shaped 4 Pin Compact Fluorescent Light Bulb Replacement for Kandolite 96500 Light Bulb T4 CFL 4 Pin Bulbs with 2G7 Base - 6500K - 8000 Hours - 1 Pack - - Amazon.com
Simply Conserve G24Q/GX24Q Horizontal PL 18-Watt EQ Single tube Cool White Gx24q-4 Pin Base LED Light Bulb (4-Pack) in the General Purpose LED Light Bulbs department at Lowes.com
Case of 10: Compact Fluorescent CFL Quad 4-Pin Light Bulb
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
8.5-Watt G24Q (4-Pin) CFL Replacement LED Light Bulb Horizontal Applic
Simply Conserve G24Q/GX24Q horizontal PL 12-Watt EQ Single tube Cool White Gx24q-4 Pin Base LED Light Bulb (4-Pack) in the General Purpose LED Light Bulbs department at Lowes.com
All-Pro All-Pro Bulb 26W 1110 Lumens Dusk To Dawn 4 Pin CFL 1pk 3189131 from All-Pro - Acme Tools