The Optoma X400 projector displays images in 1024x768 px resolution. The display format is 4:3 and in such a format it is best to choose a projection screen. The DLP system is responsible for the high quality of the projection. The highest brightness of this projector is 4000 ansi lumens. The maximum achievable contrast is 22000:1. The weight of Optoma X400 is 2.4 kg. The measured noise level in economy mode is 29 db . The projector can display up to 6000 hours without changing the light source!