What is the keyboard backlight feature?
Some VAIO® computers are equipped with a feature that allows the computer to provide LED illumination for the keyboard that shine through the characters as well as between the keys.
IMPORTANT: Not all computers are equipped with this feature. Consult the Marketing Specifications or Users Guide to see if your computer has this feature. Manuals are posted on your model support page.
Using a built-in light sensor, the Backlit KB feature will turn on automatically in low light situations, or can be set to come on when and for however long you decide .