2003UL 781 BULLETIN-2003 UL Standard for Safety Portable Electric Lighting Units for Use in Hazardous (Classified) Locations
2003UL 781-2003 UL Standard for Safety Portable Electric Lighting Units for Use in Hazardous (Classified) Locations (Seventh Edition)
1993UL 781-1993 UL Standard for Safety Portable Electric Lighting Units for Use in Hazardous (Classified) Locations (Sixth Edition; Reprint with Revisions Through and Including March 15@ 1999)