Product Description Brand: Prolink Model: PRO801RS (Online UPS 1000VA RackMount) Features: Capacity Phase      Volt-Amp 1000VA Watt standard model 900W long-run model 800W Phase Single Phase In/ Single Phase Out Input Voltage Range: Low Line Transfer 80/70/60/55VAC ±5% or 160/140/120/110VAC ±5% #1 Low Line Comeback 85/75/65/60VAC ±5% or 170/150/130/120VAC ±5% High Line Transfer 150VAC ±5% or 300VAC ±5% High Line Comeback 140VAC ±5% or 290VAC ±5% Input Frequency Ranger: 40~70Hz (Auto Sensing) Power Factor: ≥ 0.99 @Nominal Voltage (100% load) Output AC Voltage: 110/115/120/127VAC or 208/220/230/240VAC Output AC Voltage Regulation (Battery Mode): ±1% Output Frequency Range: Synchronized Range 47-53Hz or 57-63Hz Battery Mode 50Hz ±0.25Hz or 60Hz ±0.3Hz Current Crest Ratio: 5:1 (max.) Harmonic Distortion: Linear Load ≤2% THD Non-Linear Load ≤8% THD Waveform (Battery Mode): Pure Sinewave Efficiency: AC Mode 86% Battery Mode 83% Battery Standard Mode: Type 12V9AH Numbers 2 Typical Recharge Time 4 hours recover to 90% capacity Charging Current (max.) 1A Charging Voltage 27.4VDC ±1% Battery Long-Run Mode: Types Depending on application Numbers 2 Charging Current (max.) 4A/8A Charging Voltage 27.4VDC ±1% Indicator: LCP Panel UPS Status, Load Level, Battery Level, Input/Output Voltage, Discharge Timer, Fault Conditions Alarm: Battery Mode Sounding every 4 seconds Low Battery Sounding every seconds Overload Sounding twice every seconds