E-Simpo® 50-Pack CFL T8 to T5 Fluorescent Tube Side Cap Adapter,T8-T5 Tube Side Cap Converter, Allow You Install T5 28W CFL into T8 Fixture (L31 for 2ft/465mm T5 Tube) - - Amazon.com
2 x 12" 8W T5 Fluorescent Tube Warm White [4000k] (SLI 0000382) - - Amazon .com
Amazon.com: Traxxas 8430 Tube Chassis Side Section, Black : Toys & Games
DuraVent 46DVA-CFK 4" x 6-5/8" Inner Diameter Counter Flashing: Ducting Components: Amazon.com: Tools & Home Improvement
27W 6500K Four Tube Fluorescent Bulb - FML Lamp 27 Watt Light Bulb Replacement with GX10Q-4 4-Pin Base in a Square - Daylight - Quad Tube CFL 6500k High Vision Table Lamp - 1 Pack - - Amazon.com