Hangzhou Zhongzhou Optoelectronic Co., Ltd. is a specialized designer and manufacturer of different wavelength LED series, such as LED semiconductor parts, light sensor parts, LED green lighting, and other relative photo-products. We can produce 300,000,000 LED lamps annually and are now one of the biggest LED assembly houses in Zhejiang. Under the principle of "Sincerity, Efficiency, and Excellence" we have earned a reputation for high quality products, reliability, and a commitme... ...[More..]