LG 34WL500 Owner's Manual page 24

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 LGE test standard (Full White pattern , Maximum resolution).
** The monitor goes to the sleep Mode in a couple of minutes(Max 5 minutes).
24
With stand (kg) 6.9
Without stand (kg) 5.9