... than 20000Hrs life is inconceivable!As a conclusion, let's sum up the main advantages and disadvantages of Vivibright LED projectors ... )Contrast Ratio1000:1 by VGA terminals,dynamic contrast ratio up to 10000:1 via HDMINoise Level28/30dB (ECO/BRIGHT ... For Standard PC Colour (Best Colour Reproductiion)User:Memorises user's settingsComputer Compatibility1080P,WSXGA+,WXGA+,WXGA,UXGA, SXGA, XGA, SVGA ...