Short throw projector lcd projector resolution 1 280 x 800 pixels hd ready horizontal frequency range 14 93 khz vertical frequency range 47 93 hz brightness 3 000 ansi lumens brightness economy 1 700 ansi lumens contrast ratio 3 0001 lamp life 4 000 h lamp life eco mode 10 000 h lamp technology uhp lamp power 210 watt screen diagonal 57 1 44m 104 2 64m inch picture format 1610 throw ratio 0 46 1 focus manual connections composite a