It works in a similar way in that it is able to adjust the gamma levels of your screen dynamically based on your geolocation and time of day. If you've used the latter before, the former will provide a familiar user experience. Global hotkey to toggle the application from anywhereĭownload: LightBulb-Installer.exe (3.9 MB)ĭownload: LightBulb-Portable.zip (3.7 MB)Īll other trademarks are the property of their respective owners.LightBulb is essentially a free and open-source alternative to the ever-popular blue light filter tool, F.lux. Smooth gamma transitions that give time for eyes to adjustĪvoid changing gamma in games or other full-screen applicationsĪpplication whitelist for color-sensitive applications Manually set desired sunrise & sunset times LightBulb has minimal impact on performance and offers many customization options.Īutomatically calculate sunrise & sunset times based on configured location Its primary objective is to match the color of the screen to the light sources of your surrounding environment - typically, sunlight during the day and artificial light during the night. ![]() As the day goes on, it continuously adjusts gamma, transitioning the display color temperature from cold blue in the afternoon to warm yellow during the night. LightBulb is an application that reduces eyestrain produced by staring at a computer screen when working late hours.
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