Why road led solar street lamps in the municipal road lighting now

The selection of road lighting light source requirement according to the requirements of the different road grade and use, to meet the requirements of illumination conditions also meet the high photosynthetic efficiency, high life-span, the best cost performance requirements, but also conform to the requirements of the new era of green environmental protection, etc. Road lighting lamps and lanterns light

the road lighting light source should be selected according to the requirements of the different road grade and use, in meet the lighting requirements at the same time, should meet the high photosynthetic efficiency, long life, best performance, a new era of environmental protection and green requirements. Used in general road and square road lighting light source, if not consider color warm color rendering index, the best choice and the order is the led street lamp, low voltage sodium lamp, high-pressure sodium lamp, high-pressure mercury lamp, ballast and high pressure mercury lamp and incandescent lamp. From high to low in order for the led street lamps, traffic signal lamp factory mercury lamp, high pressure sodium lamp ( External trigger high-pressure sodium lamp and trigger high-pressure sodium lamp) , low voltage sodium lamp, ballast and high pressure mercury lamp and incandescent lamp. In terms of luminous efficiency, led street lamp luminous efficiency highest for more than 250 mm/w, and the normal product of luminous efficiency is 130 - 150 mm/w, above the level of the laboratory. Low pressure sodium lamp luminous efficiency of 150 lumens per watt, high pressure mercury lamp luminous efficiency was only about 50 lumens/watt, high pressure sodium lamp luminous efficiency of 100 lumens per watt; Under the same lighting effect, compared with the led street lamp, low pressure sodium lamp startup delay and service life, and the use of heavy metals, the instant start without delay, energy saving, environmental protection, long life and other aspects were higher than in the led street light. Compared with other light source, led street light, the only drawback is one-time investment, but use the lowest cost, most energy-saving, the most economic. For a long time lighting lamps, led light source is preferred.