Acer X243H User Manual page 25

Note:
ENERGY STAR logo.
This product has been shipped enabled for power management:
* Activate display' Sleep mode within 15 minutes of user inactivity.
* Activate computer's Sleep mode within 30 minutes of user inactivity.
* Wake the computer from Sleep mode by pushing power button.
The statement above is applicable only to Acer LCD Monitor with an
EN-24