Hey everyone. I have a question. If we in the US have 110 -120 volts coming out of our house outlets, and we plug in a device that requires 10 or 12 volts... how does it not get fried? Do all devices have some sort of way of stepping the voltage down further to what it needs? Also I noticed that appliances like TV's and computers have more than 1 voltage requirement. For example, some have 1.1,3,3.5,12,and 15 volts? Why is this, does it switch voltages if it's not doing anything? Isn't 3, and 3.5 close enough? Why not just make the requirement 15 instead of all the smaller voltages? Thanks!