So how bright should I go?

The brightness of projectors is measured in ANSI (American National Standards Institute) lumens. In general, the brighter the image a projector can produce, the more impact your presentation will have and the more amibient light the projector can cope with. For small groups of people in an office 1500-2000 lumens is fine, in a meeting with more than 20 people think of 2000-3000 and for presentations to large groups of people, go for a projector of over 3000 lumens. Bear in mind that the quality of the screen and the ambient light will have a dramatic effect on the image brightness. See our articles page for more extensive information.