8ft T8 / T12 LED Tube - 2 4-foot Sections - 36W - 5040 Lumens - Dual End Electric Ballast Compatible Type A - 75W Equivalent - 5000K | Super Bright LEDs
T12 Fluorescent Light Replacement
Feit Electric 18-Watt 4 ft. G13 Type AB T8 Plug and Play Or T8/T12 Ballast Bypass Linear LED Tube Light Bulb Selectable White (2-Pack) T4815/4CCT/AB/LED/2 - The Home Depot
4FT LED T8 T12 Ballast Bypass (4 Pack) Single Ended 4000K Cool White Fluorescent Tube Lamp Light Bulb Retro-fit for Non shunted Fixtures - Replaces F32T8 F32T8/SP41 FO32/841 F32T8/TL841 - Amazon.com
Electrical ballast - Wikipedia
Converting fluorescent light fixtures from T12 to T8 bulbs
Difference between T5, T8, T12 Tubes
How to change a ballast that had four wires and the new one has eight wires - Quora
GE T12 2-Bulb Residential Fluorescent Light Ballast in the Ballasts department at Lowes.com
Feit Electric 18-Watt 4 ft. T8/T12 G13 Type B Ballast Bypass Linear LED Tube Light Bulb, Selectable White (2-Pack) T4815/4CCT/B/LED/2 - The Home Depot
T12 to T8-LED Lamp Fixture Conversion Details - YouTube