Unique Bulbs (Pack of 2) F13T5/CW 13-Watt T5 Fluorescent Cool White 4100K Super Long Life : Amazon.co.uk: Lighting
EVEREADY 13W WHITE FLUORESCENT TUBE 525MM F13T5/D LIGHT BULB LAMP NEW : Amazon.co.uk: Lighting
F13T5-WW - 13w T5 525mm 21 Inch Colour:29 – The Lamp Company
Pack of 2) F13T5/WW 13-Watt T5 Fluorescent Warm White 3000K Light Bulb 20,000-Hour : Amazon.co.uk: Lighting
6 Pack Regular F13T5 Fluorescent bulbs with 900 Lumen each and 4000K great for undercabinet lights tube replacement. : Amazon.co.uk: Lighting
F13T5WW – T5 21 Inch Under Counter Fluorescent Bulbs Warm White 3000K 13-Watt F13T5/WW 21” WW Long Life Replacement Tubes for Under Cabinet Lights – Pack of 6 Bulbs : Amazon.co.uk: Lighting