What are the four indicators of LED display video advertising …
1. Гэрэлтүүлэг. There is no clear characteristic requirement for "Гэрэлтүүлэг". Because the use environment of full-color LED display is very different, and the ambient brightness is different,. For most complex products, as long as the corresponding test methods are specified in the standard, the supplier shall provide a list of performance data (product …
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