From the Manufacturer
AC-DC Power Inverter. 300 watt continuous power. Runs power equipment anytime, anywhere. Converts 12 volt DC power to standard 115 volt AC power. 600 watt surge power. Provides maximum surge power to meet the initial load requirements when starting tools and appliances. Internal cooling fan, maximizes heat dissipation. High grade thermal protection. Automatically shuts inverter down if temperature exceeds 150 degrees, protecting the unit from overheating. Overload protection. Automatically shuts inverter down if continuous draw exceeds the continuous watt power specified on the inverter. Battery low shutdown. Input short circuit protection. Automatically shuts inverter down until the short is removed. Low Battery Alarm and Shutdown Protection. Alarm activates and LED indicator lights up when input voltage falls below 10.5 volts DC. Automatically shuts inverter down when the input voltage falls below 10 volts DC.