Brilliance main office is in Carefree AZ.
Products originate from several sources, most notably, CREE here in the US.
Majority of final assembly is done overseas, and products that Brilliance sells are excellent quality. And there is lots of junk coming from overseas as well.
Look for a design that can be used in outdoor lighting fixtures. Many will say NOT for outdoor use. Look for a great warranty. The words "Limited Warranty" waves a big red flag in my opinion.
Also look for track record of performance. I have many successful contractors here in the Western US and Western Canada using Brilliance for several years with almost no failures. Yes, it's that good of a product.