Unlike most space heaters just have options for low medium and high, this gives you actual degrees. Ability to be adjusted by the desired temperature from 60°F to 90°F. Set the thermostat to your desired temp and it turns itself on and off to maintain that temps. 350 watt, 120 volt, 2.9 amps, 60Hz, Convenient 180 rotating plug with 3 prongs. Push the button under the plug to adjust rotating degree. Low wattage heater is more economical than running a higher wattage space heater and will not overload the circuit. Great choice for people who live in a mild climate.