Easy to useplug fan into receptacle, then plug controller into 120 V power supply. Features an easy-to-read digital display. The 6 ft remote temperature probe allows for accurate temperature readings to be taken. Wide cooling range from 40°F to 108°F. Set thermostat to the temperature you want the fan to come on at and that's it! 8.3 Amps maximum/ 120 V/ 60 Hz.