BenQ SH960 5500 Lumens WSXGA Full HD Projector Projection System DLP Native Resolution1080P (1920 x 1080) Brightness*5500 ANSI lumens Contrast Ratio 3000:1 Display Colorful 1.07 billion color palette Lens F=2.48-2.81, f=24.1-36.15mm Aspect Ratio Native 16:9 (5 aspect ratio selectable) Throw Ratio 1.62-2.43 (55.7"@6.56ft) Image Size (Diagonal) 28"-500" Zoom Ratio Manual Zoom, 1.50:1Lamp (Normal/Economic Mode)*330W X 2 , 2000/3000 hours Keystone Adjustment2D, Manual Vertical & Horizontal +/-30 Degree Projection Offset V=+/-125%+/-5%, H=+/-40%+/-5% Resolution Support VGA (640 x 480) to WUXGA(1920 x 1200) Horizontal Frequency 31-92 kHz