Pure sine wave inverter 300W, 12V

Output Power Continuous - 300W Input Input Nominal Voltage - 230Vac Input 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) Output Output 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 - 0.8 Battery Voltage Range 12VDC (10.5~14.3VDC) Max. Charging Current 25A Display LCD Display - INVERTER status, I/P&O/P 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) 5ms Operation Temperature -20 °C to +55 °C Audible Noise Less than 55dBA (at 1M) Relative Humidity 0-95% non-condensing Physical data Unit Dimensions (L x W x H mm) - 320*130*190 Unit Weight 9kg Inner box size(mm) 420*230*300