The mono-dimensional dynamic changes of LED
We base this  wire length and diameter given graph of the reactance-distance . Before that, Let’s explore that the equivalent impedance. increased the resistance when the sizes of them increase . The main effects on power output performance . manifested on its measurement of the output power and loader voltage are not accurate . the voltage must not be greater than 0.5V。
Attention: use thicker cable, If this bound is exceeded,

Wire diameter                   Impedance  mΩ/M（at 20oC）
0.5mm2                                         52.8
0.75mm2                                        33.5
1.0mm2                                         20.96
1.5mm2                                         13.19
2.5mm2                                         8.30
4mm2                                          5.22
6mm2                                          3.277