The LED display light pollution imperils the traffic safety brightness "overweight" the mess when ca
Datum:2011-08-16 14:46
rightness standards. 2004 years issued by the Shanghai urban environment (decoration) lighting only stipulate the standard traditional outdoor advertising, signs the lighting intensity of, do not apply LED electronic display screen. This standard issued the Shanghai when LED display the number is not much, so the luminosity of the standard exists blind spots.
However, it is understood that the Shanghai urban environment (decoration) lighting of the standards is expected to come on stage, the
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