Sitting long hours in front of the computer screen, especially for days and nights will make your eyes become tired, fatigued, and soon damaged without a good lightening.
Here is a piece of nice free software called F.lux that will make your life better by automatically adjust the lighting sensitivity of your screen colors according to time. The colors are adjusted according to time zone. Therefore, just set your location and transition speed. The time zone can be set by latitude and longitude or zip code located from the Google Map provided.
F.lux significantly helps to reduce the strain on your eyes especially during night time. After you have already installed it, F.lux will do the screen lightening adjustment task for you automatically.
F.lux is currently compatible with Windows, Linux and Mac.
Install F.lux now and start enjoy a great life!