"The Nature Power Inverter/Charger with 3000 Watt True Sinewave output provides plenty of power to run refrigerators, hair dryers, microwave ovens, lights and other household devices in your RV, boat, truck or other 12V system. Can convert virtually all of the battery's available power to AC current. ETL certified to UL and CSA standards. Short Circuit Protection Yes, True Sine Wave Yes, Power Supply 12V, Surge Watts 6,000, Soft Start Technology SST No, Low Battery Protection Yes, Continuous Watts 3,000. High 6000 Watt surge power rating to start demanding AC loads Includes a built-in 150 Amp charger to help you charge your battery bank in the fastest way possible Automatic transfer switch allows seamless transfer from shore or RV campground AC power to inverter/battery power Remote control panel with 30ft. network cable provides system information and allows for unit setup wherever you install it Automatic AC load sensing, overload protection, high temperature shutdown, over-voltage protection, low voltage alarm and low voltage shutdown for safety Remote control panel with LCD for easy reading Contains 50 surge amps"