SORAA is the world’s no.1 quality lamp manufacturer based in USA. Their founder Prof. Shuji Nakamura is a Nobel Prize winner in Physics for inventing blue light-emitting diodes. SORAA continues today with the passion to innovate products that move the technology of lighting forward to improve lives and lifestyles. They hold several patents for their products. This is the only product which gives a 95 R9 value with their technology.