The power indicator light is on behalf of the power supply is connected to the power supply, and is not not turned off, nowadays, many smart TVs are set up with a breathing light, when connected to the power supply will be lit, this indicator light is lit when, but will not consume power, so you can rest assured that the use of.
Of course, some TVs have breathing lights that can be turned off in the settings, so if your TV doesn't support it, you can buy a separate switch for the plug, and press the switch when you want to turn off the TV.
Expanded information:
TCL LCD TVs add breathing lights is the light under the control of the microcomputer to complete the gradual change from bright to dark, it feels as if a person is breathing. Its application in the TV set, and become one of the major brands of new TV selling point, play a role in notification reminders.
Breathing light refers to the light under the control of the microcomputer to complete the gradual change from bright to dark, feel like breathing. And more and more laptops or some electronic products are adding the "breathing light" design.
This is a very creative design that can be used as a sleep indicator, a runtime indicator, and a variety of status indicators. The so-called "breathing light" is based on the human respiratory rate through the light of the dark and weak performance: breathing is divided into two processes, one is the "breathing" process, one is the "inhalation" process. Breathing light Breathing lights are designed in many ways, some of them use microcontroller to generate PWM (Pulse Width Modulation) to drive the LED, and most of the way is to use the 555 timer to do. The circuit utilizes the principle of capacitor charging and discharging, which is simpler and more suitable for blue and green LEDs
References:
Baidu Encyclopedia - TCL LCD TV