hello hooper! i decided to try and get to know my hoopcity friends. so first off happy december, yay i love this time of year. not the coldness but the playing in the snow part hehe. love the name (420) happy hooping!
Hey there! The Z is a single LED that cycles between all the colors. There's a video on the website that shows the rainbow slow+fast LED. ( http://www.youtube.com/watch?v=oZ2VC-VJjy4 ) So, if you want a 6 color rainbow that flashes (except for the UV, of course), you'd specify it with all the individual colors.
If you need further clarification (I know it can be a bit confusing sometimes), just email us at email@example.com