Works perfectly on Lion. I have a headache right now and I didn't want to fiddle with the menus on my three non-Apple displays to dim them. This did the trick wonderfully.

Surprisingly the displays look very good with the software dimming. I expected the black level to be wonky but it's not too much worse than dimming it through hardware.

Good app, just one problem: It doesn't dim your (iMac) display by dimming the backlighting (at least not on a G5 iMac as far as I'm concerned). It merely darkens the pixels on the LCD.

Couple problems with this: One, it throws colours off. Two, the backlight is still there -- running the same amount of energy, albeit WASTING the same amount of energy.

I'd love to see the day when the developers can make this thing control the backlighting itself. I mean look at the macbooks (and my old powerbook) -- they go completely off -- the backlighting, that is. The iMac can do the same (under System Prefs/Energy Saver/turn off display).

This is a must have. Was using DarkAdapted (very good too), Brightness Control uses less CPU (0% when inactive vs 4%). Great freeware.

works great on ti g4 powerbook.
really neat with plesant appearance and smooth operation. works independant of main brightness control for fine tuning.

Excellent product. After TWO (2) years of use I ought to know.
I have 5 Macs in this home, from G-3 to G-5, some are networked wirelessly, etc.
Why use a screen-saver when you can use this










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Well, using the slider resets the current display profile to the default display profile. Hence, this app is not yet useful for those who have set a custom display profile.

Otherwise it does its job well.