Everfine co., ltd is a worldwide well-known manufacturer of photo-electrical measurement instruments for led and lighting industry, located in hangzhou, china. everfine is a supportive member of the cie, iso 9001 certified enterprise and government certificated high-tech enterprise.with over 200 r&d engineers' brilliant ideas and hard working, everfine has more than 80 patents in total granted in china, germany and usa. currently, everfine has more than 500 employees in total. the main