Hangzhou Yuzhong Gaohong Lighting Electrical Equipment Co., Ltd. is one of the top lighting enterprises in China and national certificated enterprise for excellent quality export products and woojong has passed ISO9001 and ISO14001 management system certification and also obtain the CNAS, SGS, NEMKO certificated lab, providing a reliable product quality guarantee. For many years of independent research and development along with close cooperation with domestic academic institutions, Woojong are dedicated to R&D of lighting products, earning many inventive patents. By virtue of excellent technology, reliable quality and sincere after service, woojong has built a high reputation domestic and overseas. Woojong products solution have made a good marketing in lots of countries and regions like North America, European Union, Middle East, Latin America, Southeast Asia, South Korea etc.