Sigma high-tech Co., Ltd., established in 1992, located in Qingpu district of Shanghai, is specialized in phototherapy area for more than 20years. Products are Mainly used in the treatment of chronic skin disease, like psoriasis, vitiligo, herpes zoster, pityriasis rosea. And all our euipment of us are widely used in Chinese top hospitals.

Sigma has got a number of patents so far and has been regarded as "Shanghai Hi-tech Enterprise" since 2001. Our independent research and development SS-03 and SS-05 ultraviolet phototherapy units won the "2002 Shanghai A-level High-Tech Achievements Transformation Project" in 2002.

Sigma products are divided into four series as follows: SS series is mainly used for medical phototherapy; SH series is for personal home use. SP series is for photodynamic therapy. SD series is for photo diagnosis.

Sigma has standard factory rooms and spacious field, all of these form superior condition for producing environment. There is about 1500 square meters of factory area, 1000 square meters of office area. Sigma consists of production department, sales department, R&D department, service department, purchasing department, quality testing department. Skillful production team, all models are ISO 9001 and ISO 13485 certified. Our Professional R&D team joined by 10staff who own many years of experience can develop 3 new products every year.

In order to explore the international market, Sigma will strengthen management, continuous improvement, technological innovation of ideas. We hope, with our science, technology and the sincerity, we will create a brilliant tomorrow together with you!