Sylvania Quicktronic electronic ballasts operate T8 lamps with maximum efficacy and high lumen output, providing 30-40%energy savings over F40T12 magnetic systems. The Sylvania 49945 electronic fluorescent ballast operates (3) F32T8 lamps at 120/277 input volts. Ideal for use in normal light areas, this instant start ballast is typically used in offices, board rooms, and retail.