In the more advanced home theater equipment, the most expensive one is the projector. Therefore, how to maintain your projector is important, and now teach you a few tricks. 1. Do not start in real time after shutdown You must know that it is off and on. The most valuable ligh

It is estimated that in 2015, the annual growth rate of global high-brightness LED output value will be 7.5%, reaching 13.7 billion US dollars, the total number of LEDs used will reach 186 billion, and the annual growth rate is 32.6%, of which the annual growth rate of usage The highest is lighting

However, it has been more than a decade since the 2003 "8.14" large-scale power outage in California, but in retrospect, I believe that the lessons learned from the power industry should not be underestimated. At that time, one of the reasons for the partial failure

Both SONY and JVC have introduced a new super projector, which shows that the 1080P market is fierce and rich. With the popularity of high-definition projectors, it is believed that more and more people will change their mindset to accept this new thing. If you use the cost per