Should high-pressure light sodium lamps be used for urban road lighting?
High voltage sodium lamp has the advantages of high light efficiency and good fog permeabilityThere are other metal halide lamps. Low pressure sodium lamp, electrodeless lamp, led and so onLook at the level and use of the road, mainly to calculate the illuminance
Not necessarily. See what you do. Make sure you put any lights on
There is no mandatory provision. But generally preferred high-pressure sodium lamp. And now there's the LED light.
