Commercial/industrial grade ferroresonant power line conditioner. Rated at 150 VA, 92% efficient at full load. Protects electronic equipment from overloads, surges, spikes, sags, overvoltage,
brownouts, and electrical noise. Voltage Regulation +/- 3% for input variation of +10%/-20%. Harmonic distortion less that 3% total RMS content at full load. MTBF 25 years. UL listed, CSA certified....