Recently, the investment of 1.23 billion yuan, the largest single public infrastructure project sin......
First, the influence of the filament voltage amplifier This article refers to the address: http:......
Abstract: In order to solve the problem of low light efficiency and high cost of L E......
The energy-saving effect of LED display is well known, which is also the highlight of its most attr......
According to statistics, 4 of the top 10 causes of human death are related to diet, including cancer......
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Led Display technology from the monochrome display in the early 1980s, to......
The output of compact fluorescent lamps is 1.4 billion, accounting for 80% of the w......