NEC LT20 - Manual (Page 28)

24 English ...
Setup
User Controls
Lamp Mode
Choose “ECO” to dim the projector lamp which will lower power
consumption and extend the lamp life by up to 150%. Choose
”Normal” to return standard mode.
Lamp Reminding
Choose this function to show or to hide the warning message when
the changing lamp message is displayed. The message will show up
100 hours before end of life.
Clear Lamp Hour
Turns the lamp hour counter to 0 hours.
Reset
Choose “Yes” then “Enter” pressed, the display parameters (except
for Lamp Hour) on this menu will return to their factory default
settings.
Reset (All)
Choose “Yes” then “Enter” pressed, the display parameters (except
for Lamp Hour) on all menus will return to their factory default
settings.