The serial number is known to Eaton to be SUSPECT.
Eaton Crouse-Hinds series Pauluhn WashPro WPH linear fluorescent light fixture,1/2" entry,50/60 Hz,4 ft lamp,Acrylic lens,T8 bi-pin,Non-metallic end caps,Standard end cap,through feed with two strain relief connectors,2-lamp,120-277 Vac,32W