Our Cobra 400 Watt Inverter converts battery power to 120 V AC household power, allowing you to power up office equipment and household appliances from your vehicle. It also has a USB output, ideal for using/charging most small video games, an IPod, a Blackberry, mobile phones, and many more USB devices. Cigarette lighter cord and direct-to-battery cables are included. This unit is ideal for laptops, 13" TVs, video games, CD players, DVD players, cellular phone chargers and much more! Features: 400 watts continuous power 800 watts surge capacity (peak power) Includes Battery Cables USB Output Current Overload Protection Short Circuit Protection Low Voltage Protection High Voltage Protection Over Temperature Protection Two Year Warranty Free Tech Support Specifications: Continuous output power: 400W Surge rating: 800W Peak efficiency (12V 1/2 load): > 88% Efficiency (full load, 12V): > 83% No load current draw: < 0.5A (12.6V) Output waveform (resistive load): Modified sine wave Output frequency: 58HZ 62HZ Output voltage: 109V 120V USB output: 5V Input voltage: 10.4VDC 14.4VDC Alarm voltage (unload): 10.2V 10.8V Shutdown voltage (unload): 9.2V 9.8V Product dimensions: 6.25"x 4.375 "x 2.25" Weight: 1.45 lbs.