Street lamp is using high pressure sodium lamp or LED light source?

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now LED technology has been applied to all kinds of lights, while LED street lamps were promoted, but outdoor lighting still have a lot of high pressure sodium lamp as light source of lamps in use. Many people buy lamp will consider high pressure sodium lamp. They actually have a certain choice between, street lamp is using high pressure sodium lamp or LED light source? Beneath the street lamp manufacturer with everyone from various angles analysis this problem.

a, high pressure sodium lamp

high pressure sodium lamp is the metal halide lamp, luminous principle of it is thermal luminescence. From lighting professional point of view, its good color rendering, strong ability to penetrate the fog, the light is very close to the sunlight color lighting. It can do a lot of power, at the same time, to ensure that its thermal performance is good. But low luminous flux, luminous efficiency is poor, the light failure, high energy consumption.

2, LED light source

LED is a light-emitting diode, it has high luminous efficiency, long service life, good color rendering, light failure is small, at the same time, it is also very low energy consumption, with the use of electricity is equivalent to a third of the high-pressure sodium lamp brightness. Cases, it is not the power of the cooling performance is good too. But if the LED street light use high power LED light source, so it's heat dissipation is a bit poor.

all in all, they both have advantages and disadvantages of each, if the height is not high the ordinary street lamp, electric, or recommend the use of LED street light. If it is a high street lamps so that both can choose. Specific how to choose according to their own actual situation, high-power LED street lamp cost is higher, but low energy consumption, to save energy. High pressure sodium lamp lights more affordable costs relative to the high power LED street light, the cooling performance is stronger. But at the same time, its energy consumption is very high. Of course in today's global energy conservation and emissions reduction, under the form of street lamp manufacturers or recommend you use the LED light source.