Power Sentry Electronic Emergency Ballast for fluorescent fixtures. Provides 1400 lumens with 90 minutes of emergency power when AC power is interrupted. 120-277 line voltage. Ignites various CFL and also linear fluorescent bulbs up to an 8-foot length. For use in 1-lamp (13-86W) or 2-lamp (13-40W) applications.FEATURESApproved for use in damp locationsFrequency: 50/60hzMax AC Input: 3.3WMax AC Amps: 0.29Test Indicator: LEDMinimum Dischare Time: 90 MinutesMinimum Recharging Time: 24 HoursMaximum Initial Light Output: 1400 Lumens