I have to say that take care with chinese brands.
Once I bought a cheap USB charger on eBay. I look for every spec, to be exact like I want it. But, as a cheap chinese product, the tolerances were not the same. So even it had marked 5V and 0.7A (for instance), they produce unwanted results on my phone (touch screen giving a bad response), due to an unconstant current.
This is something you can't say looking at specs, so take care!