Philips 146852 - PL-S 13W/841/2P Alto Single Tube 2 Pin Base Compact Fluorescent Light Bulb - - Amazon.com
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
Feit Electric 13W/18W/26W Equivalent PL Vertical 4-Pin Universal Base G24Q/GX24Q-1/-2/-3 with CCT Select LED Light Bulb (12-Pack) PL26AVCCTLED/HDRP/12 - The Home Depot
Light Efficient Design 7W 2-Pin LED (13W CFL Equivalent), Ballast Compatible or Bypass, G23-2, 5000K | LED Lighting Wholesale Inc.