TDL Science & Technology Co., Ltd is a professional manufacturer specialized in HID, OBD2 in China. We started to produce HID ballasts from 2005, and In 2011, we started developing and produce OBD2 products. After years research and development, it became one of the best HID ballasts manufacturers in China. Our factory is located in Bao'an District of Shenzhen City, totally covering an area of 3, 000 square meters and with more than 100 employees. Equipped with the most advanced testing and aging equipment, it can produce around 500, 000pcs HID ballasts and 70, 000pcs OBD products every year. We have a professional R&D team, which is experienced in OEM for international brands. Our company have passed the ISO9001: 2000 Certification in 2008, and in 2009, our products have approved by the CE certification.