Portables: Adjusting the keyboard backlight
Summary
Many portable computers feature a backlit keyboard. Learn how to change your System Preferences to experience different keyboard backlight behaviors If your portable supports this feature.
Products Affected
MacBook Pro, MacBook Air, MacBook
By default, the portables with ambient light sensors (ALS) automatically adjust the brightness of the keyboard backlight based on the ambient light in the environment. The ALS, located to the left of the FaceTime camera, evaluates the level of light for this feature. While in the default mode, the F5 and F6 keys will function only while the light levels are low enough for the ALS