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LightBulb 2.3.3

A small and free program designed to reduce eyestrain caused by your computer screen

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Average rating: 5/5 (1 votes)
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LightBulb screenshotLightBulb is a free and lightweight utility that will help you reduce the eyestrain produced by your computer screen when working on your computer at late hours. The application will constantly adjust the gamma value as the day goes on, transforming the screen color temperature from cold blue during the day to warm yellow when the night falls.

The application's main purpose is to match the screen color to the light sources that surround you (sunlight or artificial light). The application comes with a simple interface, being easy to install and handle even for inexperienced users. Several customization options are included, as well.


  • The application includes multiple customization options.
  • The program does not affect the performance of your computer.
Name LightBulb
Version 2.3.3
Developer | see all products from this developer
Product Homepage LightBulb
License Free (Freeware)
Last Week Downloads 7
All Time Downloads 1,283
Filename LightBulb-Installer.exe
Filesize 3.7MB
MD5 Checksum F0E0261363B8445B05CD599E0D3CC7FF
OS Support Win 7/8/8.1/10
Category Desktop Enhancements

100% CLEAN Certification

BadgeLightBulb has been tested by team against viruses, spyware, adware, trojan, backdoors and was found to be 100% clean. Our editors will recheck this software periodically to assure that it remains clean.


Old Versions

Software Date Added
LightBulb 2.3.3 November 03, 2021 - Latest Version
LightBulb 2.3 January 21, 2021
LightBulb May 16, 2019
LightBulb 1.6.4 July 27, 2018

Download the free LightBulb