dlp tech by texas instruments brightness: 2500 ansi lumens lamp: 200w, 3000/4000 hours(normal/eco) contrast ratio: 2500:1 (full on/full off) image size : 24" to 300" ; throw ratio: 1.8 to 2.0 :1 zoom ratio: manual zoom: 1.10:1 lens : manual zoom, f= 2.4 to 2.48, f=20.7 to 22.8 mm 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 ~ 85hz projection position: front/rear, table/ceiling input terminals: pc: analogue rgb: d-sub 15 pin x 1 input terminals: a/v: digital: hdmi x 1 component video: d-sub 15 pin (shared with analog rgb connector) s-video: mini din 4 pin x 1, composite video: rca x 1 input terminals: audio: stereo mini jack x 1 output terminals: 2 watt single speaker , analogue d-sub 15 pin x 1, pc audio jack control terminals: serial connector : rs232 9 pin mini din speakers : 1 x 2w ; video compatibility: ntsc/pal/secam auto switching power supply: 100 to 240 vac, 50 to 60 hz power consumption: 285w (max) net dimensions (wxhxd) : 239 x 106.3 x 251 mm ; weight: 2.5 kg parallel imported warranty: warranty one year delivery within 2-4 business days