Sylvania 20585 FT40DL/835/RS/ECO Dulux L 40W Ecologic Compact Flourescent CFL Light Lamp, 40 Watt, 4 Pin, 2G11 Base, 3500K, Pack of 10, 10 Count (Pack of 1), White - Fluorescent Tubes - Amazon.com
Osram 010786 - DULUX L 36W/840 Single Tube 4 Pin Base Compact Fluorescent Light Bulb - Amazon.com
Sylvania DULUX 24 Watt long compact fluorescent bulb with 4-pin base, 4100K color temperature, 82 CRI, ECOLOGIC for use on magnetic, electronic and dimming ballasts - FT24DL/841/ECO model number 20596-SYL - Amazon.com