Epson EB-770Fi User Manual page 304

Setting
Light Source Mode
Sleep Mode
Sleep Mode Timer
A/V Mute Timer
Options
Normal
Quiet
Extended
Custom
On
Off
1 to 30 minutes
On
Off
304
Description
Selects the brightness mode of
the projector; only displayed
when the Maintain Brightness
setting is disabled (EB-770Fi)
Normal: maximum brightness
Quiet: 70% brightness with
reduced fan noise
Extended: 70% brightness and
extends the life expectancy of the
light source
Custom: select a custom
brightness level and enable use
of the next setting
Automatically turns off the
projector after an interval of
inactivity
Sets the interval for Sleep Mode
Automatically turns off the
projector after 30 minutes if A/V
Mute is enabled