Analytic Systems AC Intelligent Pure Sine Wave Inverter 1200W, 20-40V In, 110V Out [IPSI1200-20-110]AC Intelligent Pure Sine Wave Inverter 1200W, 20 40V In, 110V Out Digital Signal Processor controlled high power MosFet technology creates a low voltage Sine Wave that is fed into a compact toroidal step up transformer to create a very clean low EMI AC output. Using the free to download Power Wizard software, the user can select output frequency, output voltage, output frequency and low voltage shutdown parameters from any laptop through the standard