Housing: Die-formed old-rolled Steel, Powder Coated Finish; Precision Formed Reflector to Achieve Maximum Light Output; Eco-frame & Full Body Linear Construction; High Transmission Acrylic Shade; LED: High Efficiency and High CRI; LED Life 50,000 Hours; 5 Years Limited Warranty; UL 2459/ CSA 182.3 Power Connector Included; V Hook & Hanging Chain Included; Optional Occupancy Sensor Available; Certification: ETL/cETL listed; Option 1: with High Light Transmission Lens (-LS); Option 2: with Bi-Level Light (-Bi); Option 3: with EmergencyDriver (-EM)