This is one seriously bright and long-lasting projector, and it's all about easy maintenance.
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If you're after something to power portable presentations, the Optoma ML550 is an expensive but worthwhile option.
Mini ReviewAn entry-level DLP installation projector aimed at conferences and classrooms, NEC's PE401H is thoroughly professional - if a tad old-fashioned.
Mini ReviewSelling at a mere £409.99 or less online, Epson's EB-X11 is an attempt to please everyone in a compact, highly capable package.