Just to clarify i don't think spectrum (color) is adjustable at all on any quanta products. Thanks for reiterating a point that needs to be made here.I don't understand what you are saying. Luca replied that the item you asked him about would not work with the light as his light is dimmable via a 0 to 10v output from a controller. What you sent him is not that. He then went on to tell you that you can manually dim the light with the included knob on the unit (if not using a 0 to 10v controller output) to adjust brightness to your specific need/color choice.
Not sure where you read "could work but could fry the light" in his response.
The Quanta bars are not dimmable. The Helix is using the proper controller or via manual know. Were you looking for the light to ramp up or are you just looking for something to turn them on and off?