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,4 ft,Acrylic lens,T5HO mini bi-pin,Aluminum,2-lamp,Emergency battery back-up ballast,one lamp,277V maximum,Through feed,Bolted door,120-277 Vac,54W
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