f.lux 4.134

Download f.lux 4 full version program free setup for Windows. f.lux is a simple and easy to use application developed in order to provide you with the means of automatically adapting your desktop brightness and colors to the night / day lighting conditions.

f.lux Overview

f.lux is a popular software designed to reduce the negative effects of blue light emitted by computer screens and other electronic devices. Blue light exposure, especially during the evening and nighttime hours, can disrupt our natural sleep-wake cycle and affect our overall sleep quality. f.lux aims to address this issue by adjusting the color temperature of your screen according to the time of day and your location. The software works by automatically adapting the color temperature of your screen based on the position of the sun. During the day, when the sun is high, f.lux keeps the color temperature of your screen cooler, resembling natural daylight. This helps to reduce eye strain and prevents your brain from perceiving the blue light as a signal to stay awake. As the evening approaches and the sun sets, f.lux gradually warms up the color temperature of your screen, emitting a softer, more orange light. This warmer light is believed to promote better sleep by signaling to your brain that it’s time to wind down and prepare for rest. f.lux offers a simple and intuitive interface, allowing users to customize their preferences and adjust the color temperature settings according to their needs. Users can specify their location or allow the software to use their computer’s time zone to accurately synchronize with the local sunset and sunrise times. The transition between color temperatures is smooth and gradual, minimizing any sudden changes that may cause discomfort or distraction. You may also like Total Commander 10 Free Download

f.lux 4 Free Download

One notable feature of f.lux is its ability to provide a preview of how your screen will look at different times of the day. By dragging a slider or inputting a specific time, you can see the corresponding color temperature adjustment and decide if it suits your preferences. This preview feature is particularly useful for individuals who require precise color accuracy for their work, such as graphic designers or photographers, as it allows them to make informed decisions about when to disable or modify f.lux temporarily. f.lux is available for various operating systems, including Windows, macOS, Linux, and even some mobile platforms. This cross-platform compatibility ensures that users can benefit from its features regardless of their device. Additionally, the software provides the option to temporarily disable the color adjustments for a specific period, allowing users to engage in color-sensitive tasks or activities that require accurate color representation.

In conclusion, f.lux is a valuable tool for mitigating the disruptive effects of blue light emitted by screens. By automatically adjusting the color temperature of your screen based on the time of day, f.lux helps to reduce eye strain, improve sleep quality, and promote a healthier relationship with electronic devices. Whether you’re a student, professional, or casual computer user, f.lux offers a simple yet effective solution to minimize the potential negative impacts of blue light and create a more comfortable and sleep-friendly digital environment.


  • Blue Light Reduction: f.lux reduces the amount of blue light emitted by your screen, which can help reduce eye strain and improve sleep quality.
  • Automatic Color Temperature Adjustment: The software automatically adjusts the color temperature of your screen based on the time of day and your location.
  • Smooth Transition: f.lux ensures a smooth and gradual transition between color temperatures, avoiding sudden changes that may be jarring or distracting.
  • Sunset and Sunrise Synchronization: By syncing with your computer’s time zone or specifying your location, f.lux accurately determines the appropriate color temperature based on the local sunset and sunrise times.
  • Customizable Color Temperature Settings: Users have the flexibility to customize the color temperature settings according to their preferences and specific needs.
  • Preview Mode: f.lux provides a preview of how your screen will look at different times of the day, allowing you to assess the color temperature adjustments before they occur.
  • Disable Temporarily: The software allows you to temporarily disable the color adjustments for a specified period when color accuracy is crucial.
  • Cross-Platform Compatibility: f.lux is available for various operating systems, including Windows, macOS, Linux, and some mobile platforms, ensuring accessibility across devices.
  • Location Awareness: By determining your location or using your computer’s time zone, f.lux can automatically adjust the color temperature based on your geographical position.
  • Schedule Customization: Users can set their preferred schedule for color temperature changes, tailoring it to their personal routines and sleep patterns.
  • Multiple Lighting Profiles: f.lux supports the creation of multiple lighting profiles, allowing users to switch between different settings for specific environments or activities.
  • Darkroom Mode: This feature dims the screen to an even lower level, suitable for low-light environments or nighttime use.
  • Movie Mode: f.lux offers a movie mode option, temporarily disabling the color adjustments to provide a more accurate and vibrant viewing experience.
  • Bedtime Reminder: Users can set a bedtime reminder that notifies them when it’s time to wind down and adjust their screen’s color temperature accordingly.
  • Disable for an Hour: f.lux provides a quick option to disable the color adjustments for one hour, ideal for tasks that require color accuracy or detailed work.
  • Disable for a Session: Users can disable f.lux for an entire session, useful for activities that demand precise color representation, such as photo editing or graphic design.
  • Daylight Saving Time Support: f.lux automatically adjusts for daylight saving time changes, ensuring that the color temperature remains synchronized with the local sunset and sunrise times.
  • Keyboard Shortcut: f.lux offers a customizable keyboard shortcut to quickly enable or disable the color adjustments as needed.
  • System Tray Icon: The software places an icon in the system tray, providing easy access to f.lux settings and enabling quick adjustments.
  • Gaming Mode: Users can enable gaming mode, which temporarily disables the color adjustments to avoid any potential impact on gaming visuals or performance.
  • Color Presets: f.lux provides pre-configured color presets for different activities and scenarios, making it easier to find an appropriate setting without manual customization.
  • Hotkey Control: Users can assign hotkeys to different color temperature profiles, allowing for quick and convenient switching between settings.
  • Disable on Full-Screen Applications: f.lux can be configured to automatically disable the color adjustments when using full-screen applications, providing a more accurate display.
  • Geolocation Service Integration: The software integrates with geolocation services to determine your position automatically and adjust the color temperature accordingly.
  • Multi-Monitor Support: f.lux supports multiple monitors, allowing users to adjust the color temperature settings for each display individually.

Technical Details

  • Software Name: f.lux for Windows
  • Software File Name: f.lux-4.134.rar
  • Software Version: 4.134
  • File Size: 1 MB
  • Developers: justgetflux
  • File Password: 123
  • Language: Multilingual
  • Working Mode: Offline (You donÆt need an internet connection to use it after installing)

System Requirements

  • Operating System: Win 7, 8, 10, 11
  • Free Hard Disk Space:
  • Installed Memory: 1 GB
  • Processor: Intel Dual Core processor or later
  • Minimum Screen Resolution: 800 x 600

What is the latest version of f.lux?

The developers consistently update the project. You can view the most recent software update on their official website.

Is it worth it to install and use Software f.lux?

Whether an app is worth using or not depends on several factors, such as its functionality, features, ease of use, reliability, and value for money.

To determine if an app is worth using, you should consider the following:

  1. Functionality and features: Does the app provide the features and functionality you need? Does it offer any additional features that you would find useful?
  2. Ease of use: Is the app user-friendly and easy to navigate? Can you easily find the features you need without getting lost in the interface?
  3. Reliability and performance: Does the app work reliably and consistently? Does it crash or freeze frequently? Does it run smoothly and efficiently?
  4. Reviews and ratings: Check out reviews and ratings from other users to see what their experiences have been like with the app.

Based on these factors, you can decide if an app is worth using or not. If the app meets your needs, is user-friendly, works reliably, and offers good value for money and time, then it may be worth using.

Is f.lux Safe?

f.lux is widely used on Windows operating systems. In terms of safety, it is generally considered to be a safe and reliable software program. However, it’s important to download it from a reputable source, such as the official website or a trusted download site, to ensure that you are getting a genuine version of the software. There have been instances where attackers have used fake or modified versions of software to distribute malware, so it’s essential to be vigilant and cautious when downloading and installing the software. Overall, this software can be considered a safe and useful tool as long as it is used responsibly and obtained from a reputable source.

How to install software from the WinRAR file?

To install an application that is in a WinRAR archive, follow these steps:

  1. Extract the contents of the WinRAR archive to a folder on your computer. To do this, right-click on the archive and select ”Extract Here” or ”Extract to [folder name]”.”
  2. Once the contents have been extracted, navigate to the folder where the files were extracted.
  3. Look for an executable file with a .exeextension. This file is typically the installer for the application.
  4. Double-click on the executable file to start the installation process. Follow the prompts to complete the installation.
  5. After the installation is complete, you can launch the application from the Start menu or by double-clicking on the desktop shortcut, if one was created during the installation.

If you encounter any issues during the installation process, such as missing files or compatibility issues, refer to the documentation or support resources for the application for assistance.

Can x86 run on x64?

Yes, x86 programs can run on an x64 system. Most modern x64 systems come with a feature called Windows-on-Windows 64-bit (WoW64), which allows 32-bit (x86) applications to run on 64-bit (x64) versions of Windows.
When you run an x86 program on an x64 system, WoW64 translates the program’s instructions into the appropriate format for the x64 system. This allows the x86 program to run without any issues on the x64 system.
However, it’s important to note that running x86 programs on an x64 system may not be as efficient as running native x64 programs. This is because WoW64 needs to do additional work to translate the program’s instructions, which can result in slower performance. Additionally, some x86 programs may not work properly on an x64 system due to compatibility issues.

What is the verdict?

This app is well-designed and easy to use, with a range of useful features. It performs well and is compatible with most devices. However, may be some room for improvement in terms of security and privacy. Overall, it’s a good choice for those looking for a reliable and functional app.

Download f.lux 4 Latest Version Free

Click on the button given below to download f.lux free setup. It is a complete offline setup for Windows and has excellent compatibility with x86 and x64 architectures.

File Password: 123