Keystone KT-EMRG-500 /B Fluorescent Emergency Ballast Backup

• For use in new or existing fixtures, with or without an AC ballast, where emergency lighting is needed.

• Operates one lamp in the emergency mode.

• 2-in-1 LED indicator light and push-to-test switch (for mandated code compliance testing).

• Internal battery automatically connects to the fluorescent lamp for minimum 90 minute emergency illumination via an internal solid-state transfer switch.

• A discharged battery completely recharges in 24 hours, via a fully automatic solid-state, two-rate charger.

• Features Time Delay Technology which helps to overcome end-of-life circuit protection.

• Usable in sealed and gasketed fixtures

• Compatible with most one-, two-, three-, and four-lamp electronic, standard and dimming AC ballasts.

• Operates the following lamps under emergency power: