The illumination beneath the keys of a MacBook can be adjusted or disabled to manage power consumption or reduce visual distraction in low-light environments. This backlight feature, designed to enhance typing visibility, offers user customization.
Disabling the keyboard’s illumination can extend battery life, particularly in situations where an external power source is unavailable. Further, for users sensitive to light, particularly in darkened rooms, deactivating the feature may improve comfort and reduce eye strain. Historically, backlit keyboards were incorporated to address challenges in using laptops in dimly lit spaces, adding value to the user experience.