LED chip international brands are: Corey, Prey, OSram, Philips Lumens, Nichia Chemical, Toyoda Synth and so on. Taiwan brands: Jing Yuan, Chi Mei, Guangjia, Londa, etc. Domestic brands: numerous, is currently low-end route, the main core technology is still abroad. I believe the Chinese people will conquer it soon! LED lamp beads have many kinds of chips key to see which you want. It is best to be a Cree lamp bead OSram, and then it is a Pry, crystal.