BatteryGuy BatteryGuy PS 300 Replacement Ballast - BatteryGuy Equivalent$$Tools & Hardware Other

Dual 120/277 voltage AC output ensures compatibility with newer lamp technologies and helps prolong lamp life. Internal solid-state transfer switch automatically connects the internal battery to fluorescent lamp(s) for minimum 90-minute emergency illumination. UL listed for damp locations. Five year warranty against defects in material and workmanship. (Lamps Excluded)