I am replacing both my pool and spa light.  I would like to have both color changing and am not certain as to which "package" I should use.  

PL5815 & PL5816 or PL5858 & Pl5866 or LPL-P2-RGB-12 & LPL-S2-RGB-12.  the cost vary quite a bit and not sure the value each represents. 

Do they all sychronize automatically  and do the colors change on a timed interval or do I have to turn the light on and off to change the color

I also need the gasket for each

The information on the existing fixtures is mostly unreadable.  I have attached photos as well