For business projectors >> For home theater projectors >> Presentation Projector Buyers Guide Here is a quick look at some common projection concerns for presenters. How bright should my DLP® projector be? How do I get clearest image? How portable should my DLP® projector be? Which features make my DLP® projector easy to use? Is there more to look for? Brightness and Business Projectors Projector brightness is measured in ANSI lumens. Ultra-portables start as low as 800 lumens (best for lights-off presentations), and go all the way up to a stunning 2000 lumens. Low or lights off presentations are generally not desirable, as you may be inviting a few to doze during your presentation. A projector with at least 800 lumens is desirable for use in rooms where there will be little ambient light. The size of your audience will also factor into how bright your projector needs to be. Larger audiences require larger images, which also require higher lumen output. A 1000 or more lumen projector would put you ahead of the pack, because these brighter projectors are quickly becoming the industry standard. 800 lumens for lights-off, low ambient light, presentations. 1000 lumens with some ambient light - becoming the standard. 2000 lumens with severe ambient light. Read more >>     Source code: