Is there a tweak, hack, or piece of software that can adjust the brightness of the MacBook Air's screen below the settings that MacOS X allows by default?

In low light the lowest brightness setting is too bright for me (and the setting after that is black so that doesn't work at all). :-)

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    Don't cross-post. Also, explain what's wrong with Flux and Nocturne? Commented May 8, 2011 at 14:49
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    Flux and nocturne don't do what I want, I don't want invertion I want a dimmer screen. Didn't mean to x-post, just found out about apple.stackexchange too late. Shades tho is perfection.
    – Johan
    Commented May 9, 2011 at 22:56
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    Had you bothered to open Nocturne preferences, you would have seen the Invert screen checkbox, and quite a few others, right at the top. Leave only Adjust screen brightness, and it does what you want. Flux is actually more sophisticated, not doing brightness, but changing the perceived color temperature of your screen. Commented May 10, 2011 at 4:51

2 Answers 2


I use and recommend Shades (free), which can darken the screen beyond the built-in brightness control. If you really want to get it darker, use the built-in shortcut Cmd+Opt+Ctrl+8 to invert the screen colors (same command reverses the effect).

Nocturne (free) allows you to tweak some of the inversion settings.


Supplemental answer; this question was cross-posted to Superuser and to avoid answer fragmentation I'll include the entirety of this answer there:

I use Flux which helps me a lot at night. It gives you a somewhat lower brightness and the colors are adjusted according to the light you choose.

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