dlp technology by texas instruments brightness : 2200 ansi lumens lamp : 185w, 3000/4000 hours(normal/eco) contrast ratio : 2500:1 (full on/full off) noise level : 31/26 db (normal/economic mode) resolutions supp : vga(640 x 480) to sxga(1280 x 1024) image size : 25 " to 300 " throw ratio : 2.0:1 ; zoom ratio: fixed lens : f= 2.6 f=22mm display colours : full 16.7 million colour palette aspect ratio : 4:3 native /16:9 selectable horizontal freq (khz) : 31 - 82 khz vertical scan rate : 48 - 85 hz projection position: front/rear, table/ceiling input terminals : pc : analogue rgb: d-sub 15 pin x 1 a/v : component video: d-sub 15 pin (shared with analog rgb connector) s-video: mini din 4 pin x 1 , composite video: rca x 1 control : rs232 9 pin type 1 output terminals: pc :d-sub 15 pin x 1 video compatibility : ntsc, pal, secam auto switching power supply : 100 to 240 vac, 50 to 60 hz power consumption : max 280w, standby max 5w net dimensions (wxhxd) : 255 x 90 x 214 mm; net weight : 2.2 kg 1300 130 336 for technical support parallel imported warranty: warranty one year delivery within 2-4 business days