Due to global supply chain issues, stock levels can change. Please contact support to verify stock levels. Call 1-800-983-1315

Keystone KT-EMRG-500-SL/B T8 or T12 Emergency Ballast 500 Lumen 90 Minutes Low Profile Case


Please call 1-800-983-1315 for the lowest available price
  • Lumen:
  • Keystone Technologies
Available in increments of 1
Ordering more than 10? Request a quote and we’ll back to you with our lowest price.
More Information
Certifications UL Listed
Dimmable No
Number of Lamps 4 Lamp
Dimensions 10.00”(L) x 2.10”(W) x 1.19”(H)
Length 10.00"
Width 2.10"
Height 1.19"
Lumen Output: 500
Manufacturer Keystone Technologies
Product Warranty 5 Year
Part Number KT-EMRG-500-SL/B
Minimum Start Temperature -20 Deg F
Technology Emergency Ballast
Voltage Multivolt 120V-277V
Weight Each 3.00 lbs


-  Typical Number of Lamps in Fixture: 1-4

-  Light output: 500 Lumen

-  Battery: 4.8V Sealed NiCD

-  Input Volts: 120/277V, 60Hz

-  Illumination Time: 90 Minutes

-  Warranty: 5 Years

• 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.
• Compatible with most one-, two-, three-, and four-lamp electronic, standard and dimming AC ballasts.
• UL listed for factory or field installation. Suitable for damp location.
• Can be mounted inside, on top, or remote from the fixture.*
• Designed to be used in both switched and unswitched fixtures.


- UL Listed

Write Your Own Review
Only registered users can write reviews. Please Sign in or create an account
  • 5 Year Warranty
  • UL Listed
© 2023 ShineRetrofits.com. All Rights Reserved. Your source for induction lights, LED, and fluorescent fixtures and retrofit kits.