Extending light source life – BenQ LH730 4000-Lumen Full HD LED DLP Projector User Manual
Page 48
48 Maintenance
Time used in
ECO
mode = y hours
Time used in
SmartEco
mode = z hours
Time used in
Custom
mode = a hours
2.
Equivalent Light Hour =
hours
, if
X= light source life spec of
Normal
mode
Y= light source life spec of
ECO
mode
Z= light source life spec of
SmartEco
mode
A= light source life spec of
Custom
mode
A’ is the longest light life spec among X, Y, Z, A
To obtain the light source hour information:
1. Go to
Advanced Menu - Settings
>
Light Usage Time
and press
OK
.
2. The
Light Usage Time
information is displayed.
You can also get the light source hour information on the
Information
menu.
Extending light source life
• Setting the
Light Source Mode
Go to
Advanced Menu - Picture
>
Advanced Color Settings
>
Light Source Mode
and select a
suitable light source power from among the provided modes.
Setting the projector in
ECO,
SmartEco
or
Custom
mode extends light source life.
• Setting
Auto Power Off
This function allows the projector to turn off automatically if no input signal is detected after a
set period of time to prevent unnecessary waste of light source life.
To set
Auto Power Off
, go to
Advanced Menu - System
>
Operation Settings
>
Power On/Off
Settings
>
Auto Power Off
and press / .
For time used in each light mode shown in OSD menu:
• Time used is accumulated and rounded down to an integer in
hours
.
• When time used is less than 1 hour, it shows 0 hours.
When you calculate
Equivalent Light Hours
manually, it will probably have deviation from the value shown
in OSD menu since projector system calculates time used for each light mode in “Minutes” then rounds
down to an integer in hours shown in OSD.
Light mode
Description
Normal
Provides full light source brightness
ECO
Lowers brightness to extend the light source life and decreases the fan noise
SmartEco
Adjusts the light source power automatically depending on the content brightness
level while optimizing display quality
Custom
Enables the light source brightness adjustment bar so that you can adjust the
setting to your liking
Some of the above light mode(s) may not be available under certain circumstances.
α
α
A
'
X
----
χ
×
A
'
Y
----
y
×
A
'
Z
----
z
×
A
'
A
----
a
Ч
+
+
+
=