When you choose RGB underwater light, you will find three control modes: “internal control”, “external control” and “DMX512”.
Internal control: There are only two wires on the underwater rgb light, which are divided into positive and negative poles. When in use, these two wires can be directly connected to the power supply. The way of change is fixed, and it cannot be changed after it is determined.
External control: LED rgb underwater lights are four-core wires, including red wire, green wire, blue wire and common wire. Lights can be controlled by external controllers.
DMX512: It is a five-core cable, two power cables, and three signal cables. The control of DMX512 is more complicated, and it can be coded according to its own program to achieve the desired effect. If you want to change the effect, just reprogram the program.
