When the machine is used, LED display lights, displays the indoor temperature. When the machine is turned off, LED is off, no extra display surface of the machine
When the machine is in use, the LED display light comes on to show the room temperature. When the machine is turned off, the LED goes out and there is no extra display on the surface of the machine
When the machine is in use, the LED indicator lights up to display the indoor temperature. When the machine is shut down, the LED goes out and there is no redundant display on the machine surface