Keystone KT-LED15T8-48GC-840-D/G3 Direct Drive T8 LED Tube 4000K — LeanLight
Feit Electric 4 ft. 15-W G13 Type AB T8 Plug and Play Or T8/T12 Ballast Bypass Linear LED Tube Light Bulb, Cool White 4000K (10-Pack) T4815/840/AB/LED10RP - The Home Depot
Osram 336787 - L 58W/840 5 Foot Plus Straight T8 Fluorescent Tube Light Bulb - Walmart.com
25w Sylvania T8 Fluorescent Tube 30 Inch Cool White 840 4000k 76cm F25w/840 | eBay