Optoma EP747 User Manual - Page 29

User Controls Lamp Setting Projection Hours Displays the projection time. Lamp Hours Displays the cumulative lamp operating time. Reset Lamp Hours Resets the lamp life hour counter after replacing the lamp. Lamp Reminding Choose this function to show or to hide the warning message when the changing lamp message is displayed. The message will appear 30 hours before end of life. ECO Mode Choose "On" to dim the projector lamp which will lower power consumption and extend the lamp life by up to 130%. Choose "Off" to return to normal mode. Auto Power Off Sets the countdown timer interval. The countdown timer will start to count when no signal is being input to the projector. Then projector will auto power off when countdown is finished. Sleep Timer Sets the countdown timer interval. No matter if there is signal or none, projector will auto power off when sleep timer countdown is finished. 29 English