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 Corepro PL-C LED 4.5W 475lm - 830 Warm White | Replaces 13W| Any-lamp
10-Pack PHILIPS 383133 Pin Base ALTO PL-C 13W/841/2P USA Fluorescent Lamp LED | eBay
Bonlux 13W G24 LED PL Retrofit Lamp Universal G24d 2-pin G24q 4-pin Base 21mm LED Plc Lamp 26W CFL Equivalent LED PL Horizontal Recessed G24q Bulb, Remove/Bypass the Ballast, Daylight 6000k -
MASTER PL-C 2 Pin | CPLC2P | Philips lighting
Bonlux 2-Pack 6W GX23 2-Pin LED PL Retrofit Lamp 13W GX23d CFL Replacement 180° Beam Angle Daylight 6000k LED PL Horizontal Recessed Down Light Bulb (Remove/Bypass The Ballast) - Amazon.com