Description
Keystone Emergency Ballast, 120-277V Input, 500 Lumen, most 1-4 Lamps, 90 Minutes, 3.6V Sealed NiCD Battery, Dry/Damp Rated
Keystone 500LM Emergency Ballast
- 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.
- AC output helps to guarantee compatibility with new lamp technologies.
- Features Time Delay Technology which helps to overcome end-of-life circuit protection.
Spec Sheets
