LED System (Shanghai) Technology Pte ., Ltd is a high tech corporation specialized in LED lighitng...In LEDST, we have many talent R&D and production engineers who experienced in LED field for years, extremely familiar with the LED technology and have higher development level.LEDST has elegant environment, broad office, well- build production plant and independent R&D office. Energy saving LED lightings developed by LEDST are leading in the industry, they have been popular used in city lighting, landscape lighting, road lighting, scene supply, garbage, highway, telecom, military camp, schools, factories, mansions, supermarkets, hospitals and many indoor applications.