---
syntax: markdown
tags: [tldr, linux]
source: https://github.com/tldr-pages/tldr.git
---
# light

> Control the backlight of your screen.
> More information: <https://manned.org/light>.

- Get the current backlight value in percent:

`light`

- Set the backlight value to 50 percent:

`light -S {{50}}`

- Reduce 20 percent from the current backlight value:

`light -U {{20}}`

- Add 20 percent to the current backlight value:

`light -A {{20}}`
