Light Source Information; Getting To Know The Light Hour; To Obtain The Light Source Information; Extending Led Life - BenQ Home Series User Manual

Light source information

Getting to know the light hour

When the projector is in operation, the duration (in hours) of light source usage is automatically calculated by the built-in timer. The method of
calculating the equivalent light hour is as follows:
1. Light Usage Time = (x+y+z+a) hours, if
Time used in Normal mode = x hours
Time used in ECO mode = y hours
Time used in SmartEco mode = z hours
2. Equivalent Light Hour = α hours
X= light source life spec of Normal mode
Y= light source spec of ECO mode
Z= light source spec of SmartEco mode
A' is the longest light life spec among X, Y, Z.
For time used in each light source 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 source mode in "Minutes" then rounds down to an integer in hours shown in OSD.

To obtain the light source information:

Go to Advanced Menu - System > Light Source Information and press OK. The Light Source Information page appears.
You can also get the light hour information on the Information menu.

Extending LED life

The LED headlight includes a bulb which features a light-source life far beyond traditional bulbs, yet it is still a consumable item. To keep the
LED life as long as possible, you can change the following settings via the settings menu.
• Setting the light source mode
Go to Picture > Advanced Color Settings > Light Source Mode and select a suitable light source mode from among the provided modes.
Set the projector to ECO or SmartEco mode to extend the LED life.
Light source mode
Normal Provides full light source brightness.
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