Power Sentry 272870 PSQ500QD MVOLT Emergency Ballast
Power Sentry batteries fit in the tightest of applications, including low-profile lensed troffers, downlighting and industrial lighting fixtures. They also feature an innovative Quick-Disconnect wiring harness that makes field maintenance and upgrades quick and easy. Factory or field installed inside or outside (field only) fluorescent fixture to operate lamp(s) at reduced light output, providing optimum glare-freeillumination for a minimum of 90 minutes upon interruption of normal power. Automatic battery recharge after 90-minute discharge.Multi-voltage input capability (120V-277V)Constant current-type chargerSealed, maintenance-free, high-temperature nickel-cadmium battery
