(Electricity as in AC power.) I've been using the brightness controls (F keys) to turn off the screen at night and leave my computer running. I just assumed it uses less AC power that way and I'm saving some electricity but I don't know a lot about electricals to confirm my theory. Does anyone know?
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Does a MBP use less electricity with the screen brightness down?
- Thread starter machspeed5
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When the screen is turned down the computer is using less electricity. It's common math, when the screen is dimmed, there it's not as if the computer uses the left over power to make a black image.
What I am wondering is if when the screen is inverted ( Control + Option + Command + 8 ) does it help to save energy since the white windows that would be open are now black.
I love this feature in terms of prying eyes on flights, really messes with people.
I love this feature in terms of prying eyes on flights, really messes with people.
It's the backlight that uses the majority of a LCDs power, dark colors doesn't use less power then bright ones on a LCD
Dark colors actually use more power: http://www.scientificamerican.com/article.cfm?id=fact-or-fiction-black-is
Nice find
I've also heard that before, but since I didn't have any sources I didn't bother with writing it!
It's not significantly in terms of battery life tho, but still black is requiring more power than white
If you're truly worried about electricity consumption of your computer while you're sleeping, why not simply put it to sleep by shutting the lid or shutting it down.
You won't lose any of your work or currently open applications if you put it to sleep, and the only thing that'll be using electricity is your RAM, which barely requires 5W.