Orbit ESSE-A-1-G-EB-SDT Led Surface Edge-lit Exit Sign Al Cas 1f Green Letters Battery Back-up Self Diagnostic TestOrbit ESSE A 1 G EB SDT ESSE A 1 G EB SDT Product Description Orbit ESSE A 1 G EB SDT Led Surface Edge lit Exit Sign Al Cas 1f Green Letters Battery Back up Self Diagnostic Test Specifications: Category: Exit Signs Full Technical Description: Ac Battery Powered Type; 14 3 8 Inch L X 3 1 2 Inch W X 11 Inch H Size; Aluminum Finish; Premium Grade Extruded Aluminum Enclosure Material; UL Approval; Damp Location Application; 120 277 VAC Voltage Rating;