It is now more important than ever to stretch your budget dollars, so they're designing features that reduce operating costs and extend the life of your presentation projector. The WD3300U WXGA projector introduces the color wheel and lamp drive systems that do just that. This DLP projector shines at 4,000 lumens and 2300:1 contrast for large auditoriums, lecture halls or other venues where you need to project to a very large screen.