Lumen is a simple and easy to use open-source menu bar application for Mac OS that magically sets the screen brightness based on your screen contents. You can use the tool by using your brightness key; it will automatically learn your preferences.
It automatically brightens the screen when you’re looking at a dark window, and the tool automatically darkens the screen when you are looking at the bright windows. Lumen is a lightweight and helpful tool that reduces eye strain.
The most exciting fact about this tool is that it uses the 20-20-20 rule that attracts more audiences around the world. Just like the other similar software, it also has a set of key features such as reminders, multiple options to use, customization options, open-sources and various versions, etc. Lumen is easy to use to download and install software available to use on Mac OS only.
f.lux is computer software that adjusts the color temperature according to location and time of the day. It is specially designed to reduce eye strain during nighttime use and reduce disturbance of sleep patterns. It is a lightweight and simple tool available to use on multiple platforms such as Microsoft Windows, Mac, and Linux, etc.
The software makes the color of your computer’s display adapt to the time of day, sunlight during the day, and warmth at night. If you stare at the screen for too long, then the glare from the display begins to hurt your eyes. To start with, turning down your display’s brightness may help you, but the brightness is not the real issue.
F.lux works by calculating the approximate sunset time for your location, during sunset, your computer screen will mimic nature, gradually warming up the colors. The software is straightforward to navigate and configure in a few clicks, the adjustment of the screen can be made with slides across the main windows, after the daytime and night calibrations.