In 2011, the relevant state departments issued a “subway places LED lighting technical specifications”, which stated the subway LED lighting procurement specification and opened a standardized way for the subway LED lighting. Taking into account the diversity needs of metro lighting, LED lighting is undoubtedly the best choice for the subway, which has unparalleled advantages of energy-saving, stable and durable compared with traditional lamps. Moreover, the strong seismic characteristic of LED is very suitable for metro operating environment.
It is understood that the Shenzhen Metro Line 2 total length of 33 km, all underground lines , a total of 29 sites , of which nine transfer stations , LED lamps purchase quantity of about 25,500 units. Currently, the number of metro about 48 , while 28 cities are building subway. The existing domestic subway network to the Shenzhen Metro , for example, in addition to the 2nd line to use the full range of LED lighting , the rest of the multi- use of traditional lighting , LED lighting market potential can be described as the subway is pretty huge . In addition, the former Guangzhou Metro Line sanyuanli , train stations, Yuexiu Park , Memorial Park, Haizhu Square , City Palace , Jiangnanxi , Zhongshan University , Lujiang , off the village , Modiesha , Newport East , Pazhou lighting systems and other public areas of the field of 14 stations will be replaced at the beginning of this year, energy-saving LED lamps , lighting transform the number of about 1.8 million units .
Started from 2005, the Beijing subway began to invest 8.5 billion yuan for the two metro lines with more than 70 transformation equipment systems. Data shows that the year before the implementation Beijing Subway had had pilot projects of LED lighting, a total replacement of nearly 2000 LED lamps, saving 156,000 degrees electricity annually. This year, the Beijing Subway Operation Company will expand the promotion of green LED lighting. LED lighting is expected to be used to replace the 20,000 traditional lamps, annually saving 1.7 million degrees electricity.