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2004 Ministry of Transportation proposed a & quot;road tunnel solar lighting system research& quot; and project development projects in the West, called for corporate research to reduce domestic consumption to support the lighting system to meet the basic needs of the solar-powered lighting improvements. Lack of understanding and investment in the development of the necessary highway tunnel lamps, electrical lighting industry compared with foreign production concentration, far from economies of scale should be; on the other hand the domestic use of tunnel lighting exists mostly narrow band of light, with light quality enough, high energy consumption, poor quality and stability, short life, the grade is not high, a direct result of poor highway tunnel lighting effects, can not meet the requirements for highway tunnel lighting, seriously affect driving safety. Tunnel lighting source should meet luminous efficiency, luminous flux, life, light color and color rendering requires tunnel under specific circumstances; while ensuring the formation of smog in vehicle emissions have good visibility. Tunnel lighting effects must rely reliable source to achieve. Highway Tunnel Once operational, the normal state lighting system lit almost in a long-term, so choose a suitable light source, it is an important part of the tunnel lighting.