Home / Specialty / Emergency Backup Drivers / EM for UFO High Bays / 277-480V Emergency Backup Driver for Highbays 277-480V Emergency Backup Driver for Highbays Categories: EM for Linear High Bays, EM for UFO High Bays, Emergency Backup Drivers, Specialty Description Description 30/40/60W 90 Minutes Emergency Time Related products 60W EM Backup for UFO Highbays Add to Quote 20W EM Backup for Panels & Troffers Add to Quote 15W EM Backup for Vapor Tight Fixtures Add to Quote 30W EM Backup for Linear Highbays Add to Quote