The serial number is known to Eaton to be SUSPECT.
Eaton Crouse-Hinds series Pauluhn WashPro WP linear fluorescent,1/2" entry,4 ft,Acrylic lens,T5 mini bi-pin,Non-metallic end caps,Standard end cap,one strain relief connector,2-lamp,On/off switch,quick disconnect receptacle,120-277 Vac,28W