I read about this free application in an article on Gizmo’s Freeware, Rob Shifreen explains that F.lux alters the color scheme of your monitor depending on the time of day. During daylight hours the display is bright and cool, but at night it changes to warmer tones that are easier on your eyes. This makes your monitor easier to look at and can save your eyes a bit of strain. Know any late night computer users? Make sure to share this with application with them.
Original Source – Gizmo’s Freeware – Help Save Your Eyesight With This Clever Windows Program