january 2006 brightness: 2000 lumens ; contrast : 400:1 res : s55i: svga (800 x 600) ; uxga (1600 x 1200) (max) col : 16.7 million lens : f1.7-1.9, (f = 18.9-22.6 mm) ; zoom ratio : 1:2:1 zoom/focus: manual i/o ports : rgb(2xi/p,1xo/p), serial control, comp audio(1xi/p,1xo/p), composite video, s-video dimensions :(wxhxd) 306 x 83 x 249 mm ; weight : 2.9 kg screen size: 3-301 in (p-si tft panel) lamp type : 180w normal mode ; lamp life (average): 2000 hrs video compatibility : ntsc, ntsc 4.43, pal, pal-m, pal-n, secam power consumption : 290w parallel imported warranty: warranty one year delivery within 2-4 business days