Norman Lamps FC16T9-CW - 40W, 2,590 Lumens, 1.13 in. Tube Diameter - Fluorescent Bulbs - Amazon.com
AMATRON ETL Listed 16" T9 24W LED Circline Bulb LED Circular Tube 5000K Daylight Frosted Lens with Non-Dimmable External Power Driver to Replace 16 inch 40W Fluorescent Circline - Led Household Light
Amazon.com: (2 Pack) 5.5 inch OD, 4 Pins Inside, T4 12W 6400k Circular Bulb Replacement for Conair Makeup Mirror, Round Fluorescent Lamps- FC121 : Beauty & Personal Care
Technical Precision T4 Circular 12W G10Q Fluorescent Bulb Replacement Bulb for Lighted Mirror Victory 6400K Full Spectrum Natural Daylight Circular Tube Light - 4.75 Inch Outside Diameter - Amazon.com
Case of 12) TCP 32058-41K Circular T6 Fluorescent Tube Light Bulb - Amazon .com