This was my first install of the Color Control and I learned some interesting things.
1) You need to supply 12V power from somewhere to the Color Control
2) You need to add a VE.Direct cable for ALL accessories. And SolarPanelStore does not stock these cables.
3) The Color Control is NOT bluetooth. You need to connect it to the internet, somehow, to monitor your system from your phone.
Overall, this is the nicest control panel I've used. The price of $500 is too high for anything but a very high end RV install. Plus you need to spend more to get cables and accessories.