Lenovo ThinkVision E28u-20 28" 4K HDR Monitor - Manual (Page 23)

Understanding Power Management
The power management function is activated when the computer detects that the mouse or
keyboard has not been used for a user-defined time interval. There are several states as described
in the table below.
For best performance, it is best to turn off the display at the end of the day, or when it is not in
use for a longer period during the day.
Table 2-3. Power Indicators
Status Power
indicator Screen
Recovery Operation
Consistency
On White Normal
Standby/Hang
up Amber Blank Press any key or move the mouse.
The response time may be slightly
delayed.
Note: When there is no image output to
the display, it will also enter standby
mode. ENERCY
STAR
Off Off Blank Press the power button.
There may be a slight delay before the
image is redisplayed. ENERCY
STAR
Power Management Mode
VESA Mode Horizontal
Synchroniza
tion Vertical
Synchronization Video Power
indicator Power
consumption
Normal
Operation Active Active Events White 50W (Max)*
30W (typical)
Active-Off
Mode Inactive Inactive Close Amber Less than 0.5W
Off
- - -
Off Less than 0.3W
ENERCY STAR Power consumption
P
开
25.25W
E
TEC
78.48kWh
* Maximum power consumption for maximum brightness.
This document is for reference only and reflects laboratory performance. Your product
performance will vary depending on the software, components, and peripherals you order, and it
should not be your responsibility to update this information. Accordingly, customers should not
rely on this information to make decisions regarding electronic fault tolerance or similar items.
We make no express or implied warranties as to accuracy or completeness.
Chapter 2. Adjusting and Using the Display 2-7