Acer P5271 DLP Projector Projection System: DLP (Digital Light Processing) technology from Texas Instruments Projection Mode: Front, rear, front ceiling, rear ceiling Video Compatability: NTSC (3.58/4.43) PAL (B/D/G/H/I/M/N) SECAM (B/D/G/K/K1/L) HDTV (720p, 1080i, 1080p) EDTV (480p, 576p) SDTV (480i, 576i) Resolution: Native: XGA (1024 x 768) Maximum: UXGA (1600 x 1200) Maximum Wide: 1080p (1920 x 1080) Contrast: Contrast: 3000:1 Aspect: 4:3 (native), 16:9 Brightness - ANSI Lumens: Standard Mode: 3100 Economy Mode: 2480 Projection Lens: F = 2.41 ~ 2.55, f = 21.79mm ~ 23.99mm 1:1.1 manual zoom and focus Vertical Refresh Rate: 50Hz ~ 85Hz Included Accessories: Remote control (battery included) Lens cap Carrying case AC power cord CD-ROM users guide Quick-start card Security card VGA, DVI and composite video cables