Keystone KT-EMRG-500-T5 /B 500 Lumen Emergency Ballast Fluorescent or LED SmartDrive

Keystone Emergency Ballast for Keystone SmartDrive LED T8 Lamps

For use in new or existing fixtures, with or without an AC ballast, where a quality emergency lighting solution is needed. Operates one lamp in emergency mode. Internal battery automatically connects to the lamp for minimum 90 minute emergency illumination via an internal solid-state transfer switch. Discharged battery completely recharges in 24 hours, via a fully automatic solid-state, two-rate charger. AC output helps to guarantee compatibility with new lamp technologies. Features Time Delay Technology which helps to overcome end-of-life circuit protection.