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 15W EM Backup for Ceiling Fixtures Add to Quote 8W EM Backup for Panels & Troffers Add to Quote 20W EM Backup for Downlights Add to Quote 20W EM Backup for Panels & Troffers Add to Quote