NEC WT615 User Manual page 110

Setting Lamp Mode to Normal or Eco [Lamp Mode]
This feature enables you to select two brightness modes of the lamp: Normal and Eco modes. The lamp life can be
extended up to 4000 hours by using the Eco mode. Selecting Eco mode decreases fan noise compared to in Normal
mode.
Normal Mode ........ This is the default setting (100% Brightness).
Eco Mode .............. Select this mode to increase the lamp life (75% Brightness).
Selecting Menu Mode [Menu Mode]
This feature allows you to select two menu modes: Basic Menu and Advanced Menu.
Basic Menu ........... This is the basic menu that contains minimum essentials of menus and commands.
Advanced Menu ..... This is the menu that contains all the available menus and commands.
Selecting Menu Language [Language]
You can choose one of 21 languages for on-screen instructions.
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6. Using On-Screen Menu