... : 140V~275V Output: 110V/220V optional, 45Hz~65Hz CE The pure sine wave UPS with complete comprehensive protection function ... lower the product cost largely5) Output the pure sine wave, it can connect to the inductive loads, ... 60 Hz ±0.5Hz, subject to the mainOutput Wave Formpure sine waveWave Distortion≤ 3%Transfer Time≤ 4msProtectionoverload, short ... BL Date Household and Commercial Pure Sine Wave UPS