ViewSonic VS17679 User Manual page 78

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Light Source Level
High Altitude Mode
Select the suitable power consumption of the LED.
Full
100%
Eco
70%
Dynamic Black 1
See more dark scene details according to the
brightness level of different scenes in the input
content.
Dynamic Black 2
High contrast performance according to the
brightness level of different scenes in the input
content.
It is recommended that you use High Altitude Mode
when your environment is between 1,500-3,000
m above sea level, and a temperature between
5°C-25°C.
NOTE: If you use this projector under other
extreme conditions excluding the above,
it may display auto shut-down symptoms,
which is designed to protect your
projector from over-heating. In cases like
this, you should switch to High Altitude
Mode to solve these symptoms. However,
this is not to state that this projector
can operate under any and all harsh or
extreme conditions.
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Description