4-Foot 6 Lamp 54W T5 High Bay Fluorescent, Enhanced Specular (95%), Program Start Ballast
Odyssea T5ho Dual 2 Output Electronic Ballast 54w
8Pack of 4Ft T5 28W LED Tube w 5000K White 5000 Lumen,2 PPF/W to Replace & retrofit 54W Fluorescent T5HO Lamps Directly Work w Previous Ballast. - - Amazon.com
Set of 2 Phillips Advance Electronic Ballast, 120-277V, 54W T5 - ICRP-2PSP54-90C | eBay
NovaLux 54W T5 LED Ballast, 120V-277V (NovaLux 70194) | HomElectrical.com