Screen size range: 82-inches from 8 feet; 122-inches from 12 feetwhite brightness: 2400 lumens; color brightness: 2400 lumenscontrast ratio: 600, 000:1; keystone correction: yes; lens shift: yeswarranty: 2 year limited; lamp life: up to 5, 000 hours (eco mode) and up to 4000 hours (normal mode)connectivity: 2 x hdmi, 1 rs-232c, 1 rca (composite), 3 rca (component), 1 vga d-sub 15 pin (computer input).