It can be used to measure the luminous intensity, forward voltage, reverse current of each luminous dot in all kinds of LED luminous dot matrix.
能测试各种LED发光矩阵每个发光元的发光强度，正向压降和反向电流。
It can be used to measure the luminous intensity, forward voltage, reverse current of each luminous dot in all kinds of LED luminous dot matrix.
能测试各种LED发光矩阵每个发光元的发光强度，正向压降和反向电流。
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