Designed to operate T5 fluorescent fixtures in emergency mode, the ECO-BALT5-800TD offers 800 lumens, dual 120/277V input, and a 3.6V NiCd battery for reliable 90-minute lighting. With time-delay functionality and compatibility for one- or two-lamp configurations, this ballast is housed in compact galvanized steel, allowing versatile installation inside, on top, or remotely.