Shatter Proof 47" T5 High Definition Fluorescent Tube – Full Spectrum Solutions, Inc.
Simply Conserve 32-Watt EQ T8 Daylight G13 LED Light Bulb (10-Pack) in the Tube Light Bulbs department at Lowes.com
Feit Electric 20-Watt 4 ft. T12 G13 Type A Plug and Play Linear LED Tube Light Bulb, Daylight Deluxe 6500K (2-Pack) T1248/865/LEDG2/2/RP - The Home Depot