Beijing SOFN Instruments Co., Ltd. was established in 2004, specializing in the research and development and manufacturing of optoelectronic instruments. The company was awarded the title of High Tech Enterprise in 2008; Having dozens of research patents and software copyrights; Recognized by the Beijing Municipal Commission of Science and Technology as a Beijing municipal level enterprise technology research and development institution; In 2022, it was awarded the title of Beijing Specialized, Refined, and New Enterprise. Saifan Optoelectronics has two core technologies: spectral testing technology and precision motion control technology. Some of our company's products have won the gold medal in the Beijing Innovation and Invention Competition and the second prize in Mechanical Industry Science and Technology. They have been rated as independent innovative products in Beijing and included in the designated procurement catalog.Main products series: solar cell spectral response IPCE/QE tester, solar cell I/V performance tester, solar simulator, CCD photoelectric detector performance tester, LED testing instruments, spectral testing system for fluorescence / Raman / emission / transmission, reflection and adsorption, ellipsometer, grating spectrometer/monochromator, CCD spectrum instrument, scientific grade light source, photoelectric detector, data collector, precision positioning system, electric / manual precision translation platform, opto-mechanics series and optical tables. Since its inception the company always adhere to the business philosophy concept of quality first and meeting the requirements from the user's. The company pays attention to enhance their own research and development capabilities, in meanwhile to maintain close relations of cooperation with a number of research institutes and jointly create an optoelectronics laboratory in order to ensure the leading and the applicability of the products. Among them the solar photovoltaic laboratory provides a complete solution of spectral response testing for all types of solar cells (monocrystalline silicon, polycrystalline silicon, thin film solar cells, dye-sensitized cells) and the film thickness control. We are consistent from the beginning of establishment, with the aim to provide a perfect solution on scientific research to end users. By providing professional & efficient technical support, rapid response after sales, we sincerely hope that all customers shall be satisfied with our products and service!