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LightBulb 1.6.3.4

Adjust screen gamma to match the time of day

by Mike Williams

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License: Freeware
Operating Systems: Windows 10, Windows 7 (32 bit), Windows 7 (64 bit), Windows 8
Requirements:
Languages: English
Software Cost: Free
Date Updated: 13 August 2017
Watchlist: Add download to my watchlist
Downloads To Date: 460
Developer: Alexey Golub
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LightBulb
Adjust screen gamma to match the time of day

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.

v1.6.3.4(Changelog):

This release is a minor update that includes various backend fixes, improvements and optimizations.

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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Spotlight: Free Full Software

WhatsApp Messenger 2.17.42

Free Full Commercial Software

WhatsApp Messenger is the world's most popular instant messaging app for smartphones.

You can use it to send and receive text and voice messages, photos, videos, even call your friends in other countries, and because it uses your phone's internet connection it might not cost you anything at all (depending on whether you'll pay data charges).

It's easy to set up and use. There's no need to create and remember new account names or pins because it works with your phone number, and uses your regular address book to find and connect you with friends who use WhatsApp already.

You can talk one-to-one or in group chats, and because you're always logged in there's no way to miss messages. Even if your phone is turned off, WhatsApp will save your messages and display them as soon as you're back online.

There's plenty more (location sharing, contact exchange, message broadcasting) and the app is free for a year, currently $0.99/ year afterwards.

What's New in Version 2.17.42

• Pin chats to the top of your chat list, so you can quickly find them. Just swipe right on a chat and tap the pin icon.
• You can now send documents of any type. To send a document, open a chat, tap attach — document. 
• When you receive multiple photos, you can now tap and hold on the group of photos to quickly forward or delete all of them.

[...]
Value:
Free
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