DYSMIO 13 Watt CFL Light Bulbs 2 Pin GX23-2 Base 2700K Soft White 13W High Output 800 Lumens Double Tube Compact Fluorescent Light Bulbs Plug-in 4 Pack - Amazon.com
H&M LH0228 Two Hole Horizontal Mount 2-Pin (GX23/GX23-2) base CFL sock – Lighting Supply Guy
Feit Electric 13-Watt Equivalent PL CFLNI Quad Tube 2-Pin GX23-2 Base Compact Fluorescent CFL Light Bulb, Cool White 4100K (1-Bulb) BPPLD13/41/HDRP - The Home Depot
Feit Electric 13-Watt Equivalent PL CFLNI Twin Tube 2-Pin GX23 Base Compact Fluorescent CFL Light Bulb, Cool White 4100K (1-Bulb) BPPL13/41/HDRP - The Home Depot
CFL 13watt PL bulb 2U 2-Pin GX23-2 27K 10,000 hrs
Silverlite [Plug&Play] Lengental 5w(13w CFL Equivalent) LED Stick PL Bulb GX23-2 Pin Base, 550LM, Cool White(5000k), Driven by 120-277V and CFL Ballast, UL Classified, 2 Pack - Amazon.com
2 Pin PL LED Lamp - Replaces 13 Watt- GX23-2 Base Lamps - Ballast Compatible or Bypass, 3500K and 550 Lumens