Why does the POCO F7 Pro heat up when enabling Sunlight mode?

The POCO F7 Pro supports the Sunlight mode. When it is turned on, the maximum brightness of the screen can be increased to 800 nits, which is a relatively high level and can bring you a clearer display effect. However, when used under the sunlight mode with high brightness, the screen power consumption will increase slightly, and there will be slight screen heating, which is a very normal phenomenon. Please feel free to use it. You can get a more comfortable temperature experience by exiting the sunlight mode/appropriately lowering the brightness of the phone.
Note:
Path to turn off the sunlight mode: [Settings] >> [Display & brightness] >> turn off [Sunlight mode] (visible after turning off [Automatic brightness]).