Howard BAL500 Emergency Ballast 350-500 Lumens - 1 Lamp

SPECIFICATION

Emergency lighting shall be provided by using a standard fluorescent fixture equipped with a Howard BAL500 emergency ballast.
This emergency ballast shall consist of a high-temperature, maintenance-free nickel cadmium battery, charger and electronic
circuitry contained in one 9 3/8" x 2 3/8" x 1 1/2" white metal case. A solid-state charging indicator light to monitor the charger and
battery, a single-pole test switch, and installation hardware shall be provided. The emergency ballast shall be capable of
operating one 17 W - 40 W (2’- 4’) T8, T10, or T12 fluorescent lamp or (4-pin) long compact fluorescent lamp at reduced
illumination in the emergency mode for a minimum of 90 minutes. The BAL 500 shall produce 350 to 450 lumens initial
emergency light output, have 2.5 Watts of input power, a 9.6 Watt-hour battery capacity, and comply with emergency standards
set forth by the current NEC. The emergency ballast shall be UL Listed for installation inside, on top of, or remote from the fixture

http://www.howardlightingproducts.com/Documents/SpecSheets/Ballast/Emergency/BAL500.pdf