 Wysłany: Czw 3:27, 31 Mar 2011 Temat postu: There are many factors to consider when setting up |
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led lighting industry to the present, we have led lighting product standards and testing methods of the review, the basic summary of the time has come. second, led module, optical parameters and the status of detection methods and improved method 1, the traditional detection methods writing board modules led modules currentlyconventional detection methods are mainly two, the first is the use of pulse measurement method, which is to led lighting modules fixed in the measurement device (such as integrating sphere measurement location, etc.), pulse constant current power supply and instantaneous synchronization linkage spectrometer measurements. neon signs California |
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