LED into practical era benq why projection silence
Datum:2011-08-23 15:58
htness projection only up to 50 lumen. The high price of early products and make it become the exhibition is seen on a rare items. But into the second half of 2008, LED light source technology have development are relatively mature, costs are fallen significantly, many manufacturers of such as this is Wu, have LED the projector project immediately.
Especially in 2009, LED light source realized the real breakthrough, the highest reached 800 lumens brightness. And with LED light source the techn
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