|    Model   |     IG500-12   |     IG1000-12   |     IG2000-24   |     IG1000-24   |  
  |    Capacity   |     VA/W   |     500VA/300W   |     1000VA/600W   |     2000VA/1200W   |     1000VA/600W   |  
  |    Input   |     Nominal Voltage   |     110/120VAC or 220/230/240VAC   |  
  |    Voltage Range   |     90-145VAC or 170-280VAC(Narrow Range)   |  
  |    50-145VAC or 90-280VAC(Wide Range)   |  
  |    Output   |     Voltage   |     120VAC or 230VAC   |  
  |    Voltage Regulation(Bat.Mode)   |     10%-18%   |  
  |    Frequency   |     50HZ or 60HZ   |  
  |    Frequency Regulation(Bat.Mode)   |     ±0.1HZ   |  
  |    Output Waveform   |     Modified Sinewave   |  
  |    Battery&Charger   |     Charger Current   |     10Amp±1Amp   |     10Amp±1Amp   |     10Amp±1Amp   |     6Amp±1Amp   |  
  |    DC Voltage   |     12V   |     12V   |     24V   |     24V   |  
  |    Overcharge Protecion   |     15V   |     15V   |     30V   |     30V   |  
  |    Transfer time   |     Typical   |     15ms Typical,50ms Max   |  
  |    Efficiency   |     AC to AC   |     >95%   |  
  |    DC to DC   |     >80%   |  
  |    Indicator   |     AC Mode   |     Green lighting   |  
  |    Battery Mode   |     Yellow lighting   |  
  |    Battery Charging Mode   |     Green flashing every 2 second   |  
  |    Overload   |     Red flashing every 0.5 second   |  
  |    Fault   |     Red lighting   |  
  |    Audible alarm   |     Low Battery at Battery Mode   |     Sounding every 2 second   |  
  |    Overload   |     Sounding every 0.5 second   |  
  |    Fault   |     Continuously sounding   |  
  |    Protection   |     Full protection   |     Discharge,overcharge,and overload protectin   |  
  |    Physical   |     Dimension D*W*H(mm)   |     224*255*80   |  
  |    Net Weight(kg)   |     2.0   |     2.3   |     2.5   |     1.9   |  
  |    Environment   |     Operating Environment   |     0-40C,0-90% relative humidity (non-condensing)   |  
  |    Noise Level   |     <50dB   |