Using state of the art technology, the Samlex EVO 2224 2200-watt 24VDC to 120 VAC inverter/charger operates at 165 million instructions per second with lightening fast load & response times, has 9 points of physical protection monitoring (being scanned up to 10,000 times per second) to detect fault conditions & prevent product damage and uses 5 different temperature sensors to activate 2 speed controlled cooling fans. It doesn get much smarter than this. Samlex inverter/chargers are robust, reliable and affordable for everyone. Experience the Evolution. Two Separate AC Inputs for Grid & Generator. Connect Grid & Generator simultaneously, no need to reconfigure system as power availability changes. Priority is given to Grid. Both AC input ranges are fully programmable. Adjustable frequency output. Optional EVO-RC Remote control sold separately. 2-Year Manufacturer Warranty.