ETi 48-Watt 4 ft. Linear LED Tube Light Bulb Retrofit Conversion Kit Replaces 8 ft. T8 T12 Fluorescent Bulb 7200 Lumen 5000K 64101162 - The Home Depot
LED T12 8ft. retrofit kit for converting 8ft. fluorescent T12 tubes to 4ft. T8 LED Tubes pre-wired
T8 LED Retrofit Conversion Bracket Kit 4-Lamp Tubes
How to Buy 8-Foot LED TUBE Lights to Replace Fluorescents
toggled 64-Watt 4 ft. Linear Dimmable LED Light Bulb Retrofit Conversion Kit Replaces 8 ft. T8/T12,8000 Lumen, 5000K (4-Pack) FC8TO4-D416-50321-4 - The Home Depot
SPORTIMES ORILIS 4 Light Fluorescent to LED Retrofit Conversion Kit - Includes (8) Lamp Holders, (4) 4 Ft. Orilis 24W 6500K LED T8 Tubes, (2) 3-Port Connectors, (4) Wire Nuts, and Solid Copper Wires - Amazon.com
Toggled T8/T12, 8ft. to 4 ft. Fixture LED Conversion Kit – toggled
ETi 48-Watt 4 ft. Linear LED Tube Light Bulb Retrofit Conversion Kit Replaces 8 ft. T8 T12 Fluorescent Bulb 7200 Lumen 5000K 64101162 - The Home Depot