dlp technology by texas instruments brightness : 2000 ansi lumens lamp : 185w, 3000/4000 hours (normal/eco) contrast ratio : 1000:1 (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 : 27.5" to 300" ; throw ratio : 1.9 to 2.1:1 zoom ratio : manual zoom lens : f= 2.6 to 2.8 , f=21 to 23 mm display colours : full 16.7 million colour palette aspect ratio : 4:3 native / 16:9 selectable horizontal frequency (khz) : 31 ~ 82 khz ; vertical scan rate : 42 ~ 85hz 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 v ac, 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