This will also block some UV and blue light if you don't want to use software or use some strange Linux on which no software works at all :) Technically you can also lower the brightness by wearing sunglasses in front of the PC. Most LED monitors change the brightness via a process called Pulse-width modulation which is really bad for the eyes. One thing to note is that I don't recommend changing the brightness via monitor buttons if the monitor is LED. Iris can do this also but this is not related to the question. One plus of Iris over f.lux is that you automate the brightness reduction based on day and night just like most blue light filter programs do with the color temperature and blue light. Iris and f.lux should work fine because they change the white point of the screen which is better. This method reduces contrast quite a bit and may cause eye problems. Looking at the other answers most programs lower the brightness by placing a transparent overlay filter. This over the maximum brightness is really useful when watching movies for me Here is how brightness on 110% looks like You can go as low as 10% if you enable Extended values, but this is really dark screenĪside from going down you can also go up to 150% brightness. If you set Iris to 50% brightness the screen will look like this ![]() Here is a normal screen with Brightness on 100% It should work on other Windows versions as well.You can get the biggest possible dim range with Iris. I have tested DimScreen on 64-bit version of Windows 7 and 8, and it worked perfectly. When the program closes, your viewing setting resorts to default. Selected brightness level is active only as long as the program is running. Here a value of 0% means 100% screen brightness, a value of 70% means a brightness of 30%, and so on. Click on a level to apply it immediately. You will get a menu as seen in the image above. To change brightness using mouse, locate the program icon in the Windows system tray and right-click on it. This makes it possible for you to carry the program easily in a portable storage device with your settings intact. ![]() ![]() INI file in the same location as the executable file. When you run the program, screen is automatically dimmed to the set level. In the settings dialog, you get another option to set a preferred start-up brightness level (in percentage). However, if you prefer to use the numpad keys or any other keys for that matter, just go the program’s settings and choose the desired key combination. +/ – keys configured are the one on the main keyboard, not the numpad. The program allows you to change the brightness level using hotkeys or via a pop menu – accessible by clicking on the program icon.ĭefault keyboard shortcuts configured with the program are Ctrl+ + (increases) and Ctrl+ – (decreases). To dim the screen beyond minimum available level, have a look at DimScreen.ĭimScreen is an unobtrusive little program made especially for mobile Windows users to help them in quickly changing their display screen brightness. It’s a stand-alone program, written with Autohotkey, and runs from the system tray. The perfect brightness level lies somewhere between Windows’ lowest scale and the blank black state. Windows users can adjust their screen’s brightness level by dragging the brightness slider found in the Power Options: Control Panel\All Control Panel Items\Power Options. When you are working in a dark environment, you may often find that the lowest possible level is still too bright.
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