GoodBulb 18-Watt CFL Bulb, 120-Volts Energy-Efficient Quad-Tube Lamp, 4100K Cool White Color (Pack of 4 Bulbs) - Amazon.com
Sunlite 9 in. 18-Watt U-Bent T6 FUL 4-Pin GX10Q CFL Fluorescent Tube Light Bulb, Black Light (5-Pack) HD02596-5 - The Home Depot
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
4-pin PL-C - LED Light Bulbs - Light Bulbs - The Home Depot
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
Philips 18-Watt Equivalent CFLNI (G24q-2) 4-Pin Light Bulb Bright White (3500K) (1-Pack) 383323 - The Home Depot
Philips 18-Watt Equivalent CFLNI (G24q-2) 4-Pin Light Bulb Bright White (3500K) (1-Pack) 383323 - The Home Depot
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 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
Amazon.com: GE Biax 26-Watt T/E ECO Triple Tube 4-Pin Light Bulb : Tools & Home Improvement
4-pin PL-T - CFL Bulbs - Light Bulbs - The Home Depot