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LightBulb 2.2

Adjust screen gamma to match the time of day

Rating:
(0)
Operating Systems:
Windows 10, Windows 7 (32 bit), Windows 7 (64 bit), Windows 8
License:
Freeware
Developer:
Alexey Golub
Software Cost:
Free
Category
System & Desktop Tools
Date Updated:
03 August 2020
Downloads To Date:
1667
Languages:
English
Download Size:
1.86 MB

LightBulb is a f.lux-like application which smoothly adjusts screen gamma to make colours seem warmer at night, reducing eye strain and making your PC more comfortable to use.

Install the program and it goes to work automatically, detecting your location, figuring out the sunrise and sunset time and updating your display colour temperature accordingly.

Right-clicking the LightBulb icon in your system tray and selecting "Configure" displays some useful options and tools. To get started, click the "Preview 24-hour cycle" icon and watch as the program shows you how your display colour temperature will change over time. If that's too much, or too little, use the sliders to adjust the daytime and night time colour temperatures and hit Preview to see the change.

Elsewhere, a "Gamma Polling" option refreshes the current gamma settings every five seconds, handy if another application tries to change them.

If you'd prefer other applications to be able to take control, Gamma Polling can be disabled, and it's also possible to disable the effect when a full screen application is in the foreground.

If this causes problems at any time - maybe you're editing graphics and need to see colours as they really are - the effect can be disabled in a click or two, either entirely or for a defined period of time. Alternatively,  close the program at any time and your screen will immediately return to normal.

Verdict:

LightBulb seems to be finding your location by using your external IP address, which might be a problem if you're using a VPN. But otherwise it's a likeable and configurable tool which really can make your monitor more comfortable to read.

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