Kessil Spectral Controller x vs a series. Which do you prefer?

[Rilo]

Which one and why.

 

[Montiman]

The basic programming is identical but the X series can do the X lights while the A series can not. The X series controller will need a power cable and extra unit link cable to control the A series lights. The only advantage of the X series controller with the older lights is the X series controller can do weather effects and if you have a mix of new and old lights it can control both.