If you have browsed through the forum, you'll notice that most of our senior members will advise against buying brand name products from suppliers in China. Likewise, I will say the same. If you are looking for authentic brand name mobile phones, I would suggest you avoid Chinese suppliers, 9 out of 10 times these will be knock-offs.
But if you are searching for no brand name products, then they may well be your best source. :)
Here's a post about lightinthebox.com, please have a read:
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Hope this helps. Cheers :)