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,Fluorescent,Flat,Polycarbonate lens,T5HO mini bi-pin,Aluminum,2-lamp,Standard wall/ceiling,120-277 Vac,54W