Technical Information; Energy Saving Design - LG StudioWorks 221U User Manual

Technical Information

Power Consumption

Energy Saving Design

This monitor complies with the EPA's Energy Star program, which is a
program designed to have manufacturers of computer equipment build
circuitry into their products to reduce power consumption during time of
non-use.
This monitor also goes into its energy saving mode if you exceed the
monitor's operating limits, such as the maximum resolution of 1600x1200
or the frequency refresh rates of 30-115kHz horizontal or 50-200Hz
vertical. When this monitor is used with a Green or EPA Energy Star PC,
or a PC with a screen blanking software following the VESA Display
Power Management Signalling (DPMS) protocol, this monitor can
conserve significant energy by reducing power consumption during
periods of non-use. When the PC goes into the energy saving mode, the
monitor will go into a suspended operation state, indicated by the Power
LED light changing from a green color to an amber color. After an
extended period in the suspended mode, the monitor will then enter a
semi-OFF mode to conserve more energy. In the semi-OFF mode or
DPMS OFF mode as we call it in our specifications, the Power LED will
still show an amber color. When you awaken your PC by hitting a key or
moving the mouse, the monitor will also awaken to its normal operating
mode, indicated by the green Power LED light. By following these
conventions, the power consumption can be reduced to the following
levels:
Hori.
Mode
Sync
Normal(Max.)
On
Stand-by
Off
Suspend
On
Off
Off
A19
Verti.
Video
Sync Consumption
≤ 160W(180W)
Normal
On
≤ 15W( 30W)
On Off
≤ 15W( 30W)
Off Off
≤
Off
Off 5W( 20W)
* ( ) : with USB
Power
LED Color
Green
Amber
Amber
Amber