... Modified sine wave output Soft start & fan cooling CE JSM-12-3000 12V Modified DC/AC Square Wave Inverter Features:1 ... computers, the Internet, GPS, camera, PDA, cell phone, mobile DVD, audio, battery charger, printers, monitors, game consoles, etc.2.Field operations ... television sets, car refrigerator, etc.Socket types:Waveform figure: JSM-12-3000 12V Modified DC/AC Square Wave Inverter