您看到的产品是如图1所示的一个RGB调光器，上面有4根线，分别是橙蓝绿棕，橙色线对应的是调光器的电源正极，蓝色和绿色是485控制线，棕色是调光器的电源负极。-You can see the product is an RGB dimmer shown in Figure 1, there are four lines above are orange, blue, green brown, orange line corresponds to the positive power supply dimmer, blue and green are 485 control line, Brown is dimmer negative power.