The serial number is known to Eaton to be SUSPECT.
Eaton Crouse-Hinds series Pauluhn AllPro APA linear fluorescent light fixture,3/4" entry,4 ft,Flat,Polycarbonate lens,T8 bi-pin,Aluminum,2-lamp,Emergency battery back-up ballast,one lamp,277V maximum,Standard wall/ceiling,120-277 Vac,32W
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