The serial number is known to Eaton to be SUSPECT.
Eaton Crouse-Hinds series Pauluhn Apex AA linear fluorescent light fixture,3/4",(2) NPT hubs,50/60 Hz,4 ft lamp,Polycarbonate lens,T5HO mini bi-pin,Aluminum,6-lamp,Through feed,Bolted door,120-277 Vac,54W