The main base material of Alumina used for LED phosphor powder is high purity alumina, the luminous intensity and quality of LED phosphor powder is directly affected by the alumina purity, grain size, grain size distribution, crystal type, crystal appearance etc.

The high purity Alumina produced by our self-owned purification technology has the advantages of high purity, good grain size distribution, excellent crystal type and appearance, stable property. Besides, the batch stability is also very good. Product specification as belows