I have the one with the chinese adapter, and got it from someone near me who ordered one to many, so no clue which aliexpress seller he used. The lens I just bought from a LFS over here that got them in stock, it's the original high intensity lens kit for the XR30 (Ecotech products can sometimes be scarce here in the netherlands, so I had to wait for a week or 2-3 before I could order it).