Samlex America 600W Pure Sine Wave Inverter - 12V w/USB Charging Port. Newly designed these compact and lightweight models feature soft start technology and 2X the surge. Economically priced for reliable pure sine wave power. Includes 2 three prong outlets and a USB charging port. Features of Samlex America 600W Pure Sine Wave Inverter Outlet Qty: 2 Duplex GFCI Inverter Input Voltage: 12V Waveform: True Sine Wave Package Contents: Samlex America 600W Pure Sine Wave Inverter Samlex America SSW-600-12A: 600W Pure Sine Wave Inverter - 12V w/USB Charging Port