The Freedom SW2012 is a 12V, 2000W inverter/charger that provides 120 Vac / 60 Hz output. This second-generation model includes 'Generator Support Mode' to supplement a generator when AC loads exceed its capacity. It features an improved AC transfer/AC input detection time, allowing transfer of AC loads to batteries in under 10 milliseconds. The unit produces pure sine wave output for sensitive electronics and has parallel and series stacking capabilities. It is approved to UL458 with marine supplement, CSA, ABYC, and FCC, Class B requirements.