Warehouse-Lighting.com’s 1450-3000 lumen
emergency ballast for fluorescent fixtures has a temperature rating of 32
degrees Fahrenheit to 112 degrees Fahrenheit. It includes a field-replaceable,
high-temperature, maintenance-free nickel-cadmium battery, charger and
electronic circuitry in a red metal case with a 2” flexible conduit. This emergency
ballast has a solid state charging indicator and double-pole test switch. It
comes complete with installation hardware and a five-year warranty.