Circle (4 Pack) CFL Bulbs Direct Generic Replacement for Panasonic FDS18E35/ 4 18W 3500K Double Tube, 4 Pin G24q-2 Base, Compact Fluorescent Light Bulbs - Amazon.com
Amazon.com: GoodBulb 18 Watt CFL Light Bulbs | 4 Pin GX24Q-2 Base 3000K Warm White | 18W High Output 1200 Lumens | Triple Tube Compact Fluorescent Light Bulbs Plug-in | 10 Pack : Tools & Home Improvement
Feit Electric 18-Watt Equivalent PL CFLNI Quad Tube 4-Pin G24Q-2 Base Compact Fluorescent CFL Light Bulb, Soft White 2700K (1-Bulb) BPPLD18E/HDRP - The Home Depot
Feit Electric 18W Equiv PL CFLNI Quad Tube 4-Pin Plug-in G24Q-2 Base Compact Fluorescent CFL Light Bulb, Cool White 4100K (24-Pack) BPPLD18E/41/HDRP/24 - The Home Depot
18 Watt Quad Tube Compact Fluorescent 4 Pin Replacement Bulb for Panasonic FDS18E35/4 by Lumenivo - G24Q-2 4 Pin Base – 3500K Neutral White - CRI 82 - 10,000 Hours - 1,250 Lumens - Amazon.com