I have a lot of experience buying from these large asian factories in china and importing goods into the US. I used to be a large wholesaler and procurement specialist importing goods sold for frys electronics, tiger direct, newegg etc.
The one thing I can say is if you find a good reputable factory that is the certified holder of the product. Meaning they have the actual CE, RoHS, etc, etc certification and are actually ISO certified in making that product, usually the stuff can be pretty good.
It is kinda funny how it works over there, one factory will make something and it gets hot and all the others starting ripping it off and each time of lesser quality. They will boast compliance's and certifications but it could be for a USB stick and not the actual product like headlights.
If this is a good factory and there is a lot of of interest, it would make sense to get a pool together and do a big group buy.. the amount goes down with quantity and so does the shipping fees. 190 for one is obviously for express shipping.. a more traditional way you could get probably 6 sets for 200 bucks.