The serial number is known to Eaton to be SUSPECT.
Eaton Crouse-Hinds series Pauluhn AllPro APA linear fluorescent light fixture,3/4" entry,50/60 Hz,4 ft lamp,Flat,Polycarbonate lens,T8HO RDC,Aluminum,2-lamp,Lamps included,Surface wall/ceiling,120-277 Vac,48W