The 4805 features a 16:9 format DLP chip in 854x480 resolution, and a six-segment, 4x speed color wheel. As is typical with many home theater projectors these days, the lumen output is relatively low, rated at a maximum of 750 ANSI lumens. However, contrast is a very high 2200:1. Therefore, for best results the unit should be used in a darkened viewing space with little or no ambient light.



Link: Projectorcentral