ETi 48-Watt 4 ft. Linear LED Tube Light Bulb Retrofit Conversion Kit Replaces 8 ft. T8 T12 Fluorescent 7200 Lumens (8-Pack) 64101162-8PK - The Home Depot
T8 LED Tube Lights - 4 ft. -18 Watt - 36W Equivalent
JESLED T8 LED 4FT Type B Light Bulbs, 24W 3000LM 6000K, 4 Foot LED Fluorescent Tube Replacement, ETL Listed, Dual-Ended, Remove Ballast, Clear(4-Pack) - Amazon.com