Great Value LED Tube, 17W (32W/40W Equivalent) T8/T12 Replacement Lamp G13 Base, Non-Dimmable, Soft White, 48-inches, 2-Pack - Walmart.com
T12 vs. T8 vs. T5
Difference between T5, T8, T12 Tubes
T8/T10/T12 LED Light Tube 20W Frosted Cover 25-pack | LUMINOSUM
Energy Efficiency in fluorescent lighting: T12, T8 & T5 lamps | LUXADD™
toggled 64-Watt 4 ft. Linear LED Tube Light Bulb Retrofit Conversion Kit Replaces 8 ft. T8/T12 FluorescentBulb 8000 Lumens 6500K FC8TO4-D416-65321 - The Home Depot