I bought some of these LEDs:
They have six wires at the start of the LED strip. I thought that perhaps the separate red and black wires were to power the LEDs, and that, for the 4 wire JST, the black would go to ground, and the other 3 would be red, green, and blue controls.
But Adafruit's DotStar tutorial only shows how to wire a 4 wire led strip.
I don't want to burn these out, so I'm trying to get a better understanding of how to do this properly. I can't seem to find any reference photos online for this 6 wire configuration.