The controller that comes with the AI is not anywhere close to what the GHL will do. The AI controller will start up and down, night time, very basic. The GHL will do a lot more, but of course costs a whole lot more. GHL has 2 lower prices controllers that would work just fine, but does not have all the bells and whistle the the full models have.
By the way I looked at the Reefkeeper Elite before I bought the GHL. Unless they have make some major changes, it does not come close to the GHL.
wesheltonj
90g Oceanic Reef-Ready Bowfront w/ AquaIllumination LED & GHL Profilux 3eX