Samsung Electronics GmbH
Hello,
Thank you for your enquiry.
The LED of the Samsung Curved Business Monitor LC34H890WGRXEN cannot be switched off completely. You can select the setting LED ON in standby or in operation. In the device menu, this setting is called "Power. -LED On": "Running" (on during operation) or "Standby" (when the unit is switched off).
If the power LED at the bottom of the unit is not to light up at all, i.e. neither in operation nor in standby, the monitor must be completely disconnected from the mains.
Please refer to page 39 of the user manual, available at:
https://downloadcenter.samsung.com/content... (please copy the link into a browser).
Kind regards from Schwalbach
Your Samsung Service Team