GU10 is widely used as a standard halogen lamp with the development of LED technologies, various LED GU10 have come to our life, the same size as halogen GU10. However, the stereotyped design and materials no longer appeal to consumers. Despite the same emitting principles and size as traditional GU10, this LED GU10 has an unconventional design on the lens, namely using a big lens as the reflector glass of GU10, without thermally conductive material covering, consequently displaying crystal clear design of the reflector lens to us, like a sparkling diamond; meanwhile with excellent converging performance, over 80% lux falls into 25°.