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