SATCO® HyGrade™ S8309 Plug-In Single Twin Compact Fluorescent Lamp, 9 W, Bi-Pin G23 CFL Lamp, T4 Shape, 580 Lumens Initial | State Electric
Feit Electric 7-Watt Equivalent PL CFLNI Twin Tube 2-Pin G23 Base Compact Fluorescent CFL Light Bulb, Soft White 2700K (1-Bulb) BPPL7/HDRP - The Home Depot
T8 18w Twin Fluorescent Batten Ceiling High Frequency Light Fitting - T8218HF for sale online | eBay
Sunlite 22.5 in. 40-Watt Linear Fluorescent 2G11 Base Twin Tube Light Bulbs in Neutral White, 3500K (10-Pack) HD02281-10 - The Home Depot