Max continuous power£º500W. Surge capacity (peak power): 1000W NO load current draw:¨Q0.25A Waveform: Modified sine wave Input voltage:DC11V-15V AC receptacle:110V/60HZ OR 230V/50HZ Best useful efficiency: more than 90% Over-voltage, overload, short-circuit And over-temperature protection and lack Voltage shutoff. Cover: Aluminum