LG 34WN780-B.AAU Owner's Manual page 30

Weight (Without Packaging)
The specifications are subject to change without notice.
The power consumption level can be different by operating condition and monitor setting.
* The On mode power consumption is measured with ENERGY STAR® test standard.
** The monitor goes to the Sleep Mode in a couple of minutes(Max 5 minutes).
30
With Stand (kg) 10.8
Without Stand (kg) 6.9