Correct. Multi colour LEd are voltage dependent. The tri colour controller is generates a sawtooth shaped wav3e form. as the voltage ramps up through the various voltage thresholds the LED turns on each colour in turn. If you want the leds to cycle use a sawtooth and if you wabt the colour sequence to reverse use s sinewave.
The die on which the diode junctions are mounted have the requisite voltage divider needed for driving the LEd at the corect voltage.
Just observe the polarity of the output with respect to the LED strips and it will work.
