Do you find that the brightness range of your Mac is not enough to achieve adequate lighting on the screen? In that case you need a program that gives you more flexibility, something that can be achieved with Dimmer.
I discovered it today and it will remain resident in the Menubar of my Mac, since it takes up minimal space and allows me to manage the brightness of my external monitor connected to the MacBook, something that I cannot do with the Apple keyboard, like this that comes to me like a charm.
We can make default settings to apply them quickly, although from my point of view it is best to configure it so that only the brightness comes out in a vertical bar when pressing the Menubar item.
At zero cost, but accepts donations. If you find it useful, you know.
Link | Dimmer
Thank you friend, you have solved the problem of the brightness of my macbook.
your page very good