18-Watt Quad Tube Compact Fluorescent Light Bulb with G24Q-24 Base | S6733 | Destination Lighting
Feit Electric 300-Watt Equivalent CFLNI Quad Tube E26 Base with Mogul Base Adapter Non-Dimmable CFL Light Bulb, Daylight 6500K PLF65/65/G2 - The Home Depot
FML Lamp 27 Watt Replacement Quad CFL for Floor Lamps by Lumenivo - 3000K Warm White Plug-in 27W Fluorescent Bulb with 4-Pin GX10Q-4 Base - 2 Pack - Amazon.com