LUXRITE 32-Watt Equiv. 4 ft. Linear Tube T8 LED Light Bulb Ballast and Ballast Bypass Compatible 13W 6500K Daylight (4-Pack) LR34194-4PK - The Home Depot
4 Pack of 8W/21" T5 LED Tubes Replace 13W Fluorescent Tube for Undercabinet Lights Directly to get Over 50% Energy Saving and 50K Hours Life - Amazon.com