Specification Capacity 3000VA Input Voltage Range: 110VAC ~ 270VAC or 140VAC ~ 260VAC (Selectable) Frequency: 50Hz or 60Hz (Auto-sensing) Phase: Single + GND Output Voltage Range: 220VAC +/- 10% Waveform: Sine Wave Protection / Monitoring Short Circuit Protection: Yes Surge Protection: Yes Overload Protection: Yes High and Low Voltage Protection: Yes Input and Output Voltage: LCD Indication Alarm: LED Indication General Temperature: 0'C ~ 40'C Humidity: 0 ~ 90% Warranty Information: 12 months from the date of purchase.