If the power goes off, how would it be able to function..?
Personally, I have a large True Sine Wave battery backup system in place on my display tank, so if the power goes out, the "brain" of the controller will continue to function as long as it has power.
I have seen relay controlled dialers on eBay that will phone you if the power goes out, but as for now this is not something that the Lighthouse can do. That said however, this was the primary reason that I got my 1st unit to begin with, because when the power is dead, the controller won't be active on the internet... If I can't see it online, then I know something is wrong!!!
-Tim