Using the LED strip
Each LED strip has three connection points: the input connector, the auxiliary power wires, and the output connector. These can be seen in the adjacent picture, from left to right: auxiliary power wires, input connector, output connector. The strip uses 3-pin JST SM connectors. The input connector has three male pins inside of a plastic connector shroud, each separated by about 0.1â³. The black wire is ground, the green wire is the signal input, and the red wire is the power line.
The auxiliary power wires are connected to the input side of the LED strip and consist of stripped black and red wires. The black wire is ground, and the red wire is the power line. This provides an alternate (and possibly more convenient) connection point for LED strip power. The output connector is on the other end of the strip and is designed to mate with the input connector of another LED strip to allow LED strips to be chained.
The black wire is ground, the green wire is the signal output, and the red wire is the power line. All three black ground wires are electrically connected, and all three red power wires are electrically connected.