KEYSTONE KT-EMRG-500 - Fluorescent Emergency Ballast - 1 Lamp - 120/277V - 500 Lumen

KT-EMRG-500 - Fluorescent Emergency Ballast - 1 Lamp - 120/277V 60Hz - 500 Lumen - 2.4V Sealed NiCD Battery - 5 Years Warranty

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