2-Pack F13T5/DL - T5 Fluorescent 6500K Day Light - 13 Watt - 21" Super Long Life Fluorescent Light Bulbs 20,000Hr, F13T5 by Bluex Bulbs - - Amazon.com
Triphosphor fluorescent tube 13W T5 White light 51.6cm 4000K F13T5/840
Fluorescent tube LT 13W T5/865 Short | GM electronic COM
F13T5D – T5 21 Inch Under Counter Fluorescent Bulbs Bright White Daylight 6500K 13-Watt F13T5/D 21” D Long Life Replacement Tubes for Under Cabinet Lights – Pack of 6 Bulbs - - Amazon.com
Sylvania Fluorescent 21" T5 13W 6500K F13W/T5/54 | Lightbulbs Direct