4, light sourceSolar street light is what kind of light source is the normal use of solar energy lamps an important indicator, the general solar energy miningLow pressure energy saving lamps, low pressure sodium lamp, electrodeless lamp, DLED light source. (1) low-pressure energy-saving lamps: low power, high luminous efficiency, but the service life of 2000 hours, the voltage low lamp black, generally suitable for solar lawn, garden lights. The following are the same as the "(2) low pressure sodium lamp: low pressure sodium lamp high luminous efficiency (up to 200Lm / w), but the need for inverter, low pressure sodium lamp expensive, the whole system made high, less. The following are the same as the "(3) electrodeless lamp: power is small, high light efficiency. The lamp in the 220V (pure sine wave, frequency 50 Hz) under the conditions of ordinary electricity, life can reach 50,000 hours in the solar lamp life greatly reduced and ordinary energy-saving lamps almost (because solar lamps are square wave inverter Device, solar power 220V output frequency, position, voltage and can not be compared with the general electricity). The following are the same as the "(4) LED: LED light source, long life, up to 1000000 hours, low operating voltage, no inverter, high luminous efficiency, domestic 50Lm / w, imports 80Lm / w. With the technological progress, LED performance will be further improved. I believe that LED as a solar street light source will be a trend. 5, light pole and lamp shellThe height of the poles should be determined according to the width of the road, the spacing of the lamps, and the illuminance of the road. Lamp shell According to our collection of many foreign sun light information, between the beautiful and energy-saving, most of them choose energy-saving, lighting appearance is not high, relatively practical on the line. The following are the same as the "The following are the same as the "Second, the design of solar street lights 1, the road illumination and scope of applicationAccording to the "urban road lighting design standards" provisions: fast road average illumination 20lx, uniformity 0.4, trunk road average illumination 15lx, uniformity 0.35, secondary road average illumination 8lx, uniformity 0.35, branch average illumination 5lx, uniformity 0.3. LED power is now put into use, due to technical conditions, LED power is too small 30 ~ 100w, light effect 50 ~ 80lx / w, road illumination is low, the author did the test, the rod is 8.5 meters high, spacing 30 meters, light source 2 × 50wLED Lights, lights under the illumination 19lx, between the two lights 11lx, the darkest 3.5lx. The following are the same as the "
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