The Arriba Adapter works with all lightning connecter products, such as the new iPad, Ipad mini ect. It wont 'speed up' the charge to an ipad though, so you need a tradional ipad charger to charge at normal speeds. FYI Below.
(iPhone charger)Charger is 5 volts and is 1 Amp so it has 5 watts
(iPad charger) Charger is 5 volts and is 2.1 Amp so it is 10 watts