Flux is a must have if you spend long hours into the night on the computer. It automatically adjusts your computers screen colors according to the time of day. Once you set Flux up, it’s autopilot from there. This is less strain on your eyes, which will ultimately help keep your vision at its best. The best part is that Flux is free, it’s easy to setup. If you spend most of your time on the computer at night, Flux is for you. Now the computer will adjust to you, not the other way around!