Wagan Smart AC USB Power Inverters are the smart and compact mobile power to convert 12 Volt DC to 110 Volt AC for your electronics. Continuous Use: 150 Watt, Peak Surge Power: 300 Watt, AC Voltage Output: 110 +/- 5 Volt AC RMS, Optimum Efficiency: 90 Percentage, No Load Current Draw: 0.15 Ampere, Input Voltage Range: 10 to 15 Volt DC, Auto Low Battery Shutdown: 10 Volt +/- 0.3 Volt DC. Includes a cooling fan.