Hi, I'm not sure if this is a correct place to ask this, but i have a question about the charging speed for the usb chargers for phones and tablets. from what I have gathered, the device being charged is the one that pulls the current from the charger, so if a 1 amp input device is charged with a 2 amp output charger, only 1 amp max is being supplied right? But how come I read on lots of other websites that the wattage (voltage * amps) matters for how fast something charges? For example, it says a charger with 5v and 2 amp output = 10 watts and they say that will charge something faster than a charger with 5v and 1 amp output = 5 watts.. But I don't understand because I thought the device only pulls 1 amp if that is the maximum input current? Are these websites wrong?