ben,
That same unit is in my tub. I specified a multicolored LED light at purchase and that was the unit they installed. The Balboa controller that controls my tub has a dip switch that allows the light to either be operated on-off or with a dimming function. You might check your controller and see if the same is available.
BTW, I enjoy the ColorGlo though I rarely use the light unless guests are over or when adding chems after a night soak. The red light is expecially good for allowing night skies to remain bright while one soaks with the light on. There is another color change mode that cycles between blue, green and aquamarine that is pretty appealing also. I like the product and its different functions.