Specifications Model ONS-1000A ONS-1000 Input Voltage Range DC10-15V DC10-15V Output Voltage Range AC100-120V AC210-230V Maximum Continuous Power 1000W Surge Capacity 2000W Output Frequency 60±2Hz 50±2Hz Output Waveform modified sine wave No Load Current Draw <0.5A Optimum Efficiency >90% Over Load Protect yes Over Voltage Shutdown yes Under Voltage Alarm yes Under Voltage Cutout yes Short Circuit Protect yes Over Temperature Shutdown yes Cooling Fan yes Operating temperature range 0°C to 40°C (32°F to 104°F) AC Receptacle Universal Socket×1 Dimensions ( L x W x H ) 　168×95×55mm Weight ( approx. ) 1.3Kg