Simply Conserve G24Q/GX24Q horizontal PL 18-Watt EQ Single tube Daylight GX24Q-4 Pin Base LED Light Bulb (4-Pack) in the General Purpose Light Bulbs department at Lowes.com
LED PL Lamps, 26W, Horizontal Recessed, GX24Q-3 Base 4-Pin, 4100K
Amazon.com: LED GX24Q/G24Q 4-Pin Base Light Bulb, No Ballast 22W (42W CFL/Compact Fluorescent Lamp Equivalent) GX24 LED PL-C Recessed Lamp, Remove/Bypass The Ballast, Daylight 6000K
Simply Conserve G24Q/GX24Q Vertical PL 18-Watt EQ Single tube Daylight GX24Q-4 Pin Base LED Light Bulb (20-Pack) in the General Purpose Light Bulbs department at Lowes.com
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
GX24q-3-E26 Base Adapter (4 pin) - America's Best LED
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
Bonlux 12W LED GX24Q 4-pin Base Light Bulb 26W CFL/Compact Fluorescent Replacement GX24/G24Q LED PL Retrofit Lamp Daylight 6000k 360 Degree Beam Angle (2-Pack, Remove/Bypass The Ballast) - Amazon.com