A/soft start technology, B/Automatic Reset -Restarts automatically if the inverter shuts down from:Over-voltage, under-voltage, overload, short circuit, or over temperature, after the problem is corrected. Previously, manual reset was required. C/low input protection D/overload protect E/short circuit protection F/high tempreture protection G/reverse polarity pretection Continuous power 300W Surge capability 600W Input voltage 10-15VDC Output voltage and frequency 100-110V 60Hz,220-240V 50Hz Output waveform Modified Sine Wave Efficiency above 90% Static current less than 300mA Low input voltage protection 10V Low input voltage warning 10.5V Output overloading protection 350W