Lamp beads are words, foreign: CREE, OSRAM, Lumen, Samsung, Hanhalf, Japan, Sharp, etc. Taiwan: billion light, Dongbei, Londa, Lomins, Addison, Qihan, Liton and other mainland: Hongli, Ruifeng, Jufei, Wanrun, Guoye Star, Tiandian, Lehman, Hang Ke and so on to see what kind of lamps and markets you use, most of the domestic are packaged with domestic chips, and now the domestic LED chip is also good, SAN An and Wanbang did 150LM\/W of the finished light effect, but also much cheaper