Dell S2415H Monitor - Manual (Page 36)

36 | Operating the Monitor
Energy
Power Button
LED
Allows you to set the power LED indicator On or Off to save energy.
Reset Energy
Settings
Select this option to restore default Energy settings.
Menu Select this option to adjust the settings of the OSD, such as, the
languages of the OSD, the amount of time the menu remains on
screen, and so on.