Pure sine wave inverter 300W, 12V

Output Power Continuous - 300WInputInput Nominal Voltage - 230VacInput Voltage Range - 120V~275VacLine 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 / 240VacWaveform - Pure Sine WaveVoltage Regulation (Batt. Mode) < 3% RMS for entire battery voltage rangeOutput Frequency - 50Hz ± 0.1HzEfficiency > 85%Maximum Load - Up to short circuitAsymmetrical Load Max. - Up to nominal output powerOverload and Short Circuit Protection - Automatic disconnectionOverheating Temperature Protection - Acoustic warning before shut-off.Power Factor - 0.8BatteryVoltage Range 12VDC (10.5~14.3VDC)Max. Charging Current 25ADisplayLCD Display - INVERTER status, I/P&O/P Voltage Frequency, Load%,Battery Voltage & %, Temperature, ModeLED Display - Normal (Green), Warning (Yellow), Fault (Red)Audible AlarmBattery Mode - Beeping every 4 secondsLow Battery - Beeping every secondOverload - Beeping twice per secondGeneral dateAC By Pass Time (UPS Mode) 5msOperation Temperature -20 °C to +55 °CAudible Noise Less than 55dBA (at 1M)Relative Humidity 0-95% non-condensingPhysical dataUnit Dimensions (L x W x H mm) - 320*130*190Unit Weight 9kgInner box size(mm) 420*230*300