Magnum Energy MS2012-15B MS Series 2000 Watt, 12V Inverter/100 Amp PFC Charger/2-15A AC Breakers in 15 amp Ratings, Input battery voltage range 9 - 17 VDC, Nominal AC output voltage 120 VAC, Output frequency and accuracy 60 Hz +/- 0.04%, Rated input battery current 225 ADC, Inverter efficiency (peak) 89% (MS201215B MS2012 15B MS-2012-15B MS 2012-15B)