It is particularly effective, responsible, with two laptops simultaneously. I tested it with two Samsung Galaxy S2 50% load, he finished the charge of two half past one. And with a single portable, about 50%, it took him an hour. It is not slower than on the area with its three hours total load.
The most:
It is solid, compact and well finished.
It holds firmly seated without play and through.
It fits very well into the cigarette lighter of a car of the 80s.
It has a blue LED in a circle.
A powerful charge of 2.1 A per socket!
The least:
The lighting of the LED can not be seen in daylight.
The guarantee is only one year.
In conclusion: compared to other similar models of the same range, compared to its quality, durability, finish and effectiveness, its price is very reasonable!