Lightwise LWL7W40-F13T5 21" Direct Replacement Led Tube, 7-Watt, White, 4000K, Retrofit 13W T5 Fluorescent Tube of your Uncder-Cabinet Lights 50% Energy Saving, Replace Directly Set of 3 - - Amazon.com
5 x 21" 13W T5 Fluorescent Tube 535 [3500k] Standard White (Crompton) - - Amazon.com
Led T5 - 13W – Waked Electronics
General F13T5/830 13w T5 Linear Fluorescent 3000K G5 Base
Linear fluorescent lamp T5-13W 4000K/65 - Kanlux
Osram F tube T5 13w Cool White Light Bulb | Homebase
Feit Electric 13-Watt 21 in. T5 G5 Linear Fluorescent Tube Light Bulb, Cool White 4100K (1-Bulb) F13T5/CW/RP - The Home Depot