Understanding Power Management; Power Management Modes - Lenovo L28u-30 User Manual

Understanding power management

Power management is invoked when the computer recognizes that you have not used your
mouse or keyboard for a user-definable period. There are several states as described in the
table below.
For optimal performance, switch off your monitor at the end of each working day, or whenever
you expect to leave it unused for long periods during the day.
Table 2-3. Power indicator

Power Management Modes

State Power Indicator
On White
Standby/Suspend Amber
Off Off
Horizontal
VESA Modes
Sync
Normal operation Active
Active-off mode Inactive
Switch off -
Energy Star
P
ON
E
TEC
* Maximum power consumption with max luminance.
This document is informational only and reflects laboratory performance. Your product may
perform differently, depending on the software, components and peripherals you ordered and
shall have no obligation to update such information. Accordingly, the customer should not rely
upon this information in making decisions about electrical tolerances or otherwise. No
warranty as to accuracy or completeness is expressed or implied.
Restoring
Screen
Operation
Normal
Blank Press a key or
move the mouse
There may be a
slight delay before
the image
reappears.
Note: Standby
also occurs if there
is no image output
to the monitor.
Blank Press the power
button
There may be a
slight delay before
the image
reappears.
Vertical Power
Video
Sync Indicator
White
Active Active
Off
Inactive Amber
- - Off
Power Consumption
24.28 W
75.41 kWh
Compliance
ENERGY STAR
ENERGY STAR
Power Consumption
48 W (maximum)*
31 W (typical)
Less than 0.3W
Less than 0.3W
2-8
Chapter 2.