Solar street lamps light colour rendering many higher than the high-pressure sodium lamp and high pressure sodium lamp color rendering index as long as 23 or so, and color rendering index reached more than 75 solar street lamps, from the perspective of visual psychology, arrived at the same brightness, solar street light evenly to
solar street light light color reproducibility is far higher than that of high pressure sodium lamp. High pressure sodium lamp's color rendering index is only about 23, and solar street light color rendering index up to more than 75. From the visual and psychological point of view, under the condition of the same brightness, solar street lamp light intensity more than 20% lower than the high-pressure sodium lamp evenly. For the urban green landscape lawn lamp mainly to increase security and aesthetic feeling and design, with external and soft light. They are usually easy to install, and have very strong adornment sex. Can be used for park, garden villa, square, greening etc green decorative lighting. Until the 1990 s, lawn lamp is widely used in urban slow lane, narrow lane, residential areas, tourist attractions, parks, squares, private garden, courtyard corridors, and other public places. Road lighting use one or two volume road, it improved the security of the people by night, increase the outdoor activities, and improve the safety of lives and wealth. It also can change people's mood, improve people's emotions, and can change people's idea, invention of the light and shade the palette of the night. During the day, lawn lamp can be decorated the city scenery. At night, lawn lamp can not only provide necessary lighting and convenient life, increase the residents' sense of security, can highlight the bright spot of the city and shows a bright style, this style has been used up to now, has developed into a mature industrial chain.