Its asset consists of 2 USB ports each delivering 2 Amps 5V, which corresponds to the voltage on the USB port.
So although we have 2 X 2 A corresponding to 20 Watts announced.
A small front facade in blue LED indicates that the charger is powered and receives the 12V cigarette lighter socket.
The adapter connects and disconnects without problems from the outlet.
2 amps corresponds to an intensity which is now claimed by the biggest phablettes smartphones or even tablets.
NOTE gear like 3 or 4 or Mediapad X1, to name a few, require 2A to recharge.
If you provide them a single amp, they are likely to not charge or to discharge during intensive use as a GPS application for example.
Anyway, the easiest way is to look at the intensity provided by the charger supplied with the unit, to know what it takes.
1A chargers are sufficient for smaller devices that do not ask for more.
In fact, this charger provides Amazon basics so what simultaneously charge two big gear drive, which is appreciable.
I have not measured with an ammeter, but my Mediapad which is a great gourmand in action, sees recharge its battery of 5000 mAh carefree, so for me it's all good.
