Truly upgraded wall mounted space heater (temperature detection and temperature control) portable compact electric space heater with adjustable thermostat and timer, overheat protection, LED display, safe heater for office, dorm room and dog house use. LED Display and Timer Press the timer button allows you to scroll through 1 and 12 hours in 1 hour increments. For auto power on timer, ensure the heater is turned off, press the timer button until the LED display shows the number of hours you want for auto shut off timer, ensure the heater is turned on, keep pressing the timer button till it reach your desire time. Energy Efficient With the sensor button, the heating function of electric space heater will automatically switch on/off to heat up to the set temperature. Specification: Rated Voltage: 110-220V Rated Frequency: 60Hz Rated Power: 500W Dimensions: 5.5 inch in diameter