# light
> CLI to 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}}`