... resolution: 1024*768 4, Support HDMI, AV, VGA, U-disk, external SD card 5, Buitl-in 2GB internal memory 6, Built ... read contents from SD card and USB device like USB drive or external hard disk 8, LED lamp--life time is over 20 ... '' panel CS-LcosAspect Ratio4:3Luminous Flux180 Lumens(Max.)Contrast(FOFO)800:1Resolution1024 x 768 (XGA)Projection Image Size6''-180''(Recommendation)Projection ...