Inverter Features Built-In High-Speed Cooling Fan Digital Display Low Battery Alarm Surge Protection Thermal Protection Output Form Modified Sine Wave DC Connection Input Terminals Continuous Output Power 410 W Peak Output Power 820 W Number of Outlets 3 Input Voltage 10.5 to 15.5V DC Output Voltage 120V AC Output Frequency 60 Hz Efficiency 85 Percent Overall Depth 3 1/2 in Overall Height 11 1/2 in Overall Width 9 1/2 in Outlet Type (2) NEMA 5-15R