InFocus Work Big IN36 Projector Aspect Ratio - 4x3 native; supports 16 - 9, 4 - 3 and 5 - 4 Brightness - 3000 max ANSI lumens Contrast Ratio - 1000 - 1 (full on/full off) DLP by Texas Instruments -- 0.7 XGA DDR DMD 4-segment, 2-speed color wheel