Powerful Portable Electric Safe Quiet Ceramic Heater

[With LED display and timer]: pressing the timer button allows you to scroll through 1 and 12 hours in 1-hour increments. For auto-on timer, make sure the heater is off, press the timer button until the LED display shows the number of hours you want. For auto-off timer, make sure the heater is on, press and hold the timer button until it reaches your desire time.