brightness: 4500 lumens (3600 whisper mode) ; contrast : 750:1 res : xga (1024x768 pixels) (native) ; uxga (1600x1200 pixels) (max) col : 16.7 million lens : f (focal length):(1.7-2.4) (f =31-46 mm),zoom ratio : 1.5: 1 i/o ports : audio (2 i/p 1 o/p), bnc, rj45 x 1 (network compatibility), rgb (1 i/p, 1 o/p), composite video, s-video x 1 screen size: 40-500 inches (polysilicon lcd) dimensions :(wxhxd) 420 x 150 x 336 mm ; weight : 7.7 kg lamp type : 310w uhb ; lamp life (average): 1000 hrs video compatibility : ntsc, ntsc 4.43, pal, pal-m, pal-n, secam audio outputs: 2 outputs 1w power consumption : 430w * picture in picture * full function remote control w/ laser pointer * electronic lens shift parallel imported warranty: warranty one year delivery within 2-4 business days