Mir is this unit went for the 2nd time broken (no burn, or burn out - simply stop working) after I had joined my tablet for charging, the 2A houses ('m not 100% sure that it is because). In my opinion, a charger should not break if you connect the wrong device. Spare came every time straightforward and without problems. Service top, product otherwise okay - the 1A border is indeed in the specification and on the product. Two stars withdrawal, because I would have liked a more durable charger.