Model # SF-500, 500 Watt Step Up/Down AC TO AC voltage converter, Operates on110/220V AC Automatically. No worries to set input voltage manually. Red lightindicates power source. Red light indicator for 110V output and Green lightindicator for 220V output. Has a universal socket outlet which means any type ofplug fits into the converter and power cord with two pin Asian/European typeSchuko plug with earth. Has built in thermal fuse protection (Reset button).Excellent Transformer with CE.