Amazing power 2-Pack 6W LED GX23 PL Lamp GX23d 2-Pin Base 13W CFL/Compact Fluorescent Lamp Replacement 120V Single Tube LED PL Horizontal Recessed Bulbs (Remove/Bypass The Ballast) (Daylight) - Amazon.com
Feit Electric 13-Watt Equivalent PL Twintube CFLNI Bi-Pin Plug-In GX23 Base CFL Replacement LED Light Bulb, Cool White 4100K (1-Bulb) BPPL13/841/LEDG2HDRP - The Home Depot
Philips Energy Saver 60W Equivalent Soft White GX23 Base PL-C CFL Light Bulb - Connolly's