Pure sine wave inverter 1000w 12V LCD

Output Power Continuous - 1'000WInputInput Nominal Voltage - 230VacInput Voltage Range - 120V~275Vac Line Low Transfer - 120Vac ± 2% Line Low Return - 130Vac ± 2% Line High Transfer - 285Vac ± 2% Line High Return - 260Vac ± 2% Input Frequency 50Hz (45Hz~70Hz) OutputOutput Voltage 220Vac 230Vac 240Vac Waveform - Pure Sine Wave Voltage Regulation (Batt. Mode) < 3% RMS for entire battery voltage range Output Frequency - 50Hz ± 0.1Hz Efficiency > 85% Maximum Load - Up to short circuit Asymmetrical Load Max. - Up to nominal output power Overload and Short Circuit Protection - Automatic disconnection Overheating Temperature Protection - Acoustic warning before shut-off.Power Factor - 0.8BatteryVoltage Range 12VDC (10.5~14.3VDC) Max. Charging Current 25ADisplay LCD Display - INVERTER status, IP&OP Voltage Frequency, Load%,Battery Voltage & %, Temperature, Mode LED Display - Normal (Green), Warning (Yellow), Fault (Red) Audible Alarm Battery Mode - Beeping every 4 seconds Low Battery - Beeping every second Overload - Beeping twice per second General date AC By Pass Time (UPS Mode) 5msOperation Temperature -20 °C to +55 °C Audible Noise Less than 55dBA (at 1M) Relative Humidity 0-95% non-condensing Physical dataUnit Dimensions (L x W x H mm) - 320*130*190Unit Weight 13kgInner box size(mm) 420*230*300