This is an LED emergency driver designed for factory or field installations that enables normal and emergency operation of a switched or non-switched LED fixture. During a power failure, the activates emergency mode to maintain consistent output wattage to the fixture without light degradation for a 90-minute duration. The contains a 4.5-Volt, 2800mAh Ni-Cad battery, charger, test switch, and converter circuit in powder-coated steel finished housing. We’re always looking for ways to make your light better. We continue to innovate, challenge our thinking, and improve our processes. We look to earn your business by delivering progressive lighting solutions designed to balance value with the highest design performance possible. We’re determined to bring you reliable products that provide real solutions. Our commitment is to be a leader of reliability, innovation, and excellence because we understand just how important you are.