toggled 64-Watt 4 ft. Dimmable Linear LED Tube Light Bulb Retrofit Conversion Kit Replaces 8 ft. T8/T12 Bulb 8000 Lumens 4000K FC8TO4-D416-40321 - The Home Depot
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
LED Retrofit Kits | Shop Fluorescent to LED Conversion Kits & Retrofit Light Fixtures | Warehouse-Lighting.com
Orilis 4 Light Fluorescent to LED Retrofit Conversion Upgrade Kit - (8) Non Shunted Lamp Holders, (4) 4 Ft 24W 5000K LED T8 Tubes, (2) Connectors, (4) Wire Nuts, Solid Copper Wires - Amazon.com
Toggled T8/T12, 8ft. to 4 ft. Fixture LED Conversion Kit – toggled