CONSTRUCTIONHousing,wireway,and ends are formed from code-gauge steel.Housing components act as heat sink for LED heat dissipation.Knockouts are provided for electrical access and mounting.Shielded with 100% frosted prismatic POLYCARBONATE lens.FINISHWhite painted parts are treated with a five-stage phosphate bonding process and finished with high reflectance baked enamel. For a post-painted housing finish select PAF option.ELECTRICALLong-life LEDs are rated for 50,000 hours at L80 lumen maintenance. Driver options include fixed output for on/off function,step dimming (high/low/off) or continuous 0-10V dimming. Features:UL,DLC complianceVoltage:AC120-277V/347VEfficacy:120lm/wCRI:>82THD:<15%Warranty:5 yearsOptions:Bi-level Dimming sensor/EmergencyInstallation:Surface and Suspended