LED street light to replace the traditional street lamp - comprehensive open the new era of green lighting

City road lighting light source basically used traditional high pressure sodium lamp, fluorescent lamp, etc., among them, high pressure sodium lamp, with its characteristics of high photosynthetic efficiency, penetration strong, used in road lighting is the largest.

There are more and more city road lighting using LED lighting technology to replace the traditional lighting technologies, its purpose is to reduce the consumption of electricity. Due to the LED street light use the low voltage dc power supply, facilitate additional detection and control circuit, for the street light network intelligent management, further saving energy and reducing consumption has brought convenient.

Combining with the characteristics of road lighting design in our country at present, the LED street lamp technology constantly improving, more and more used in our country's road reconstruction project.In the  future the traditional street lamps will exit the market, the road market is belong to LED street lamp , let's look at the deficiency of traditional street lamps and the LED street light advantages.


Using high pressure sodium lamp , road lighting exist the following deficiency :
(1) lamps and lanterns direct illuminate on the ground, and high intensity of illumination, trunk road in some times also can reach more than 401 x, but obviously, this belongs to excessive lighting illumination, and are responsible for a large number of energy waste.At the same time, in two adjacent the cross position of lamps and lanterns, intensity of illumination reached only about 40% of the direct illuminate direction, can't effectively meet the demand of lighting.

(2) the efficiency of high pressure sodium lamp reflector are only about 50-60%, which suggests that nearly 30-40% lighting irradiation inside the lamps and lanterns, the overall efficiency only 60%, there are serious waste phenomenon.

(3) theory, the life span of the high pressure sodium lamp is 15000 hours, but the influence of the power grid voltage fluctuation and running environment, its service life far cannot reach theory of life, the damage rate of lamps and lanterns is more than 60% a year.
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LED street light



Compared with the traditional high pressure sodium lamp, LED street light has the following advantages:

(1) as a kind of semiconductor devices, in theory, the useful lifespan of LED street light up to 50000 hours, higher than high-pressure sodium lamp (15000 hours) .

(2) compared with HSP, LED street light can reach more than 80 color rendering index, very close to natural light, in this light, the eye of recognition can be effectively, thus ensuring driver safety.

(3) in the street lamp open, HPS needs a preheating process, the light from dark to bright need a certain amount of time, not only caused the waste of electricity, and affect the effective development of intelligent control. Compared with the open instant of LED street light can achieve the best lighting, there is no such thing as an start time, therefore can achieve good intelligent energy-saving control.

(4) from the luminescence mechanism, HPS is the mercury vapor light, disposed in the light source, if not effective treatment, will inevitably cause the corresponding environmental pollution. LED street light is a solid-state lighting, such as there is no harmful substances to human body, is a kind of green light source.

(5) the analysis from the aspects of the optical system, HPS belongs to the omni-directional lighting, more than 50% of the light after reflects and then illuminate to the ground, in the process of reflection, is bound to be part of the light loss, affect its utilization.LED street lamp is one-way light, the light can directly a directional light, so the utilization rate is relatively high.

(6) Distribution curve flux of HPS need to be decided by the reflector , so there are a lot of limitations; LED street light used a distributed source, through the effective design of the electric light source, can make the light source of lamps and lanterns presents the ideal state, realize the reasonable light distribution curve adjustment, control the distribution of light, in the available irradiation range of lamps and lanterns, intensity of illumination is relatively uniform.

(7) at the same time, the LED street light have more perfect automatic control system, can according to different time and light conditions, to adjust the brightness , can play a good energy saving effect.

Above all, compared with using high pressure sodium lamp as road lighting, the LED street light to energy conservation and environmental protection.There is no doubt that with the progress of science and technology, energy-efficient light source will be constantly emerging, as a professional LED street light manufacturer, TEK lighting innovation design, grasps the new technology, Always put the energy conservation and environmental protection to work first, is a best choice for you.

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