Philips 32W T8/40W T12 Equivalent 4 ft. Type A Linear Universal Fit Bright White LED Tube Light Bulb (3000K) (2-Pack) 539148 - The Home Depot
Philips LED Frosted Universal Fit 4-Foot T8 Tube Glass Light Bulb,Cool White, 2 Count (Pack of 1) - Amazon.com
4 Foot LED Tube, Hybrid, Dual Mode 3 in 1, Will Work With or Without Ballast, Replaces 32 to 45 Watt Fluorescent, 2,700 Lumen, 10 Year Warranty - LED Global Supply
Philips 470112 - 14T8 PRO LED/48-4000 IF G 4 Foot LED Straight T8 Tube Light Bulb for Replacing Fluorescents - Walmart.com