Model: 175W Input Voltage: dc 10-14.8v Output Voltage: ac 220-240v Continuous Power: 175W Spike Power (break): 350W Output frequency: 50+/3hz Output waveform: modified sine wave Output efficiency: 90.5% Operation temperature: 15 to 50 Deg Celcius 12v input, no load current: <0.45a low voltage range: <9.6v over voltage range: >14.8v