Design Features: High efficiency. Low battery voltage alarm. Protections: input low voltage, input over voltage,over temperature, over load, short circuit. Low idle power draw. Built-in electronic GFCI. Optional remote control (sold separately): Model RC-15. Comes with pin-type battery cable lugs. OUTPUT: Power, Continuous 600 Watts. Power, Surge (for <1 sec) 1000 Watts. Output Voltage 120 VAC +/- 3%. Output Frequency 60 Hz. Output Voltage Waveform Pure Sine Wave. Total Harmonic distortion < 3%. INPUT: Input Voltage 21.4 to 33 VDC. Input Current at No Load < 450 mA. LOW INPUT VOLTAGE WARNING ALARM 21.4 V. LOW INPUT VOLTAGE Shut-down 20 V. High Input Voltage Shut-down 33 V. Operating Ambient Temperature 0 to 40ºC +/- 5ºC. Peak Efficiency 85%. COOLING Temperature Controlled Fan. DC INSTALLATION KIT (DC-1000-KIT). CONNECTIONS: Input Tubular type screwdown terminals. Output 2 x Standard North American Outlet (NEMA 5-15R). DC Side Input Fuse 20A x 2. REMOTE RC-15 (optional).