If you spend a long day in front of the computer, it is important that the monitor is comfortable to watch. It is designed to help with this by automating the brightness of the rising sun screen and consists of a graphic display that is really smooth that shows the current position of the sun. In Settings, you can choose the brightness that suits you for day and night, and enter your width. I don't know your width, but if you're looking for your nearest big city or city in Wikipedia, you'll find it! If you click on the sun in this interface gives you a quick overview of the Blackout effect that will occur within the next 24 hours (function {(' Review-App-page-Desktop ');}); Do your job without any problems. It has a button to overwrite, so if you do not work your sensitive color will not be distracted by the screen has changed. It can be fixed by automatically finding your width, or at least be able to calculate the width according to your site, but that's less question. It depends on the usefulness of using your computer-in the office where the light does not change it's a bit irrelevant! Although it is not difficult to change the brightness of the screen, which means that you never think again.