x5 Bell 21" 13w T5 Fluorescent Tube - Cool White / 4000k (840) - 5412 | eBay
Rab t5he-13-48g-850-dir
LED T8 Tube - 13W - 3ft. - Type C - 1850 Lumens - 3000K
Keystone 4Ft. Plug & Play T5 LED Tube (F28T5 Fluorescent Retrofit) 13W, 4000K | LED Lighting Wholesale Inc.
F13T5CW – T5 21 Inch Under Counter Fluorescent Bulbs Cool White 4100K 13-Watt F13T5/CW 21” CW Long Life Replacement Tubes for Under Cabinet Lights – Pack of 6 Bulbs - Amazon.com
Amazon.com: Durolux LWL7W40-F13T5 21" 7Watts White LED Tube with 4000K to Retrofit for 13W T5 Fluo. Tube of Your Under- Cabinet Lights to get Over 50% Energy Saving! Replace Directly! (3) :
Sylvania Linear Fluorescent Bulb, 13W, 4000K F13T5/CW | Zoro
Dencon Accessories - LYVIA T5 13W/840 FLUORESCENT TUBE. 4000K COOLWHITE 525MM INCLUDING THE PINS.