Established in Changzhou in 1988, Qianhui Lighting Appliance Co., Ltd. Changzhou is one of the leaders of China in Lighting & Light sources. With 20 years of experience and professionalism, we produce and market lighting fixtures and systems which are the perfect synthesis of technology and design. SIETRA is one of the strongest branches of our company with distribution throughout the world. Investing greatly in the Research & Development of innovative lighting, SIETRA manufactures a ...   |