Orbit ESSE-B-2-R-AC LED Surface Edgelit Exit Sign, Black Casing, 2 Face, Red Letters, AC Only Choose Pack:4 Pack Ideal for residential construction (Single

Ideal for residential construction (Single & Multi-Family) and Manufactured Homes

which just means they work in various setups

Easy Installation: Multiple knockouts for flexible conduit entry

patent pending mechanical design stringently tested to conform to UL263 and ASTM STD E119 to provide protection against the spread of heat and flames into the ceiling cavity for 1 hour and 2 hours

Orbit ESSE-B-2-R-AC LED Surface Edgelit Exit Sign, Black Casing, 2 Face, Red Letters, AC Only Choose Pack:4 Pack Ideal for residential construction (SingleCategory Exit Signs Page J11 Features: Dual Voltage Input 120 277VAC Operation UL Listed for Damp Location Long lasting, Energy Saving LED Lamps 90 Minutes Minimum Emergency Operation (EB Only) Premium Grade Extruded Aluminum Housing Aluminum Canopy for wall, ceiling or end mounting included Field applied Chevrons Included UV Stabilized ultra clear acrylic Edge Lit Panel Mirror divider on double face versions Single Face Panels are Clear, Double Face