I had already bought a 5630 (waterproof, that one) directly in Asia, and it is a little less evil than one relayed by Amazon.
In both cases there has "5630" printed on the tape, and the LEDs are of dimensions 5,6mmx3,0mm. As long as we do not power they seem of good quality ... but they only light up about one third of the area ...
In short, if you want to effectively led, do not choose this model, neither the cheapest came directly asia.