The Optoma EP1691 is a DLP projector that is apt for making full-screen presentations. This Optoma projector delivers images, data, and videos in dazzling colors, thanks to its native resolution of 1280x768 pixels. And with a contrast ratio of 2500:1, this DLP projector enhances every detail of images and text in your presentation. The 2,500 ANSI lumens of this Optoma projector ensure a memorable viewing experience. The 200-watt lamp of this energy efficient projector lasts for up to 2,000 hours. What’s more, you can pair the Optoma EP1691 projector with an HDTV.