Energy saving renovation scheme of LED street lamp

With the continuous energy consumption, resource shortage, damage the greenhouse effect to human is more and more obvious, the atmospheric pollution of the earth more and more serious, the requirements of energy saving is increasing, the energy saving become the priority among priorities of countries. As early as in 1996, China officially launched the green lighting project, the proposed lighting project to conserve resources, prevent pollution, the benefit of future generations. Over the years, through the joint efforts of all walks of life, as the fourth generation of light source semiconductor (LED) lighting products have a leap in the development of energy saving has made remarkable achievements.

Outdoor lighting in China accounts for about 30% of the total electricity consumption, and is closely related to people's production and life. LED street lamp as an important application of outdoor lighting, its superiority:

1, high power LED street lamp life is long

The members are very concerned about the focus of the problem, as many domestic and foreign experts and the company's products brochure described 5-10 million hours, and optimistic, in fact, high power LED lamp life depends on the following points:

(1) LED light source chip quality, light attenuation value.

(2) packaging quality, consistency and reliability of LED.

(3) LED acts as a cold light source, but the LED semiconductor itself generates heat. LED heat dissipation to ensure a good working condition of LED.

(4) power supply, constant current drive life quality assurance.

2, high energy efficiency

Lighting engineering is a system engineering, whether lighting or lighting is bright atmosphere by converting electric energy into light, and then through the projection lamp, make a part of the illuminated area reaches a certain intensity, uniformity, color, multiple face local synthesis of a complete lighting project, not simple hard to compare the consumption, but to compare integrated and comprehensive analysis.

3, the difference between conventional lamps and semiconductor LED lighting

Lighting lamps are light, power, shade and other accessories such as assembly combinations, it is used to control the light source, the light shines the way, but also can protect the light source, lighting tools to improve lighting efficiency.

The conventional street lamp is composed of lamp shell, light source cavity, electrical room, etc.. Because of the sufficient space of the shell and the sealing of the activated carbon and the foam silicone rubber, the working condition of the light source is ensured. The protection level of the light source cavity IP65, the protection level of the electrical room IP45. Conventional lighting as long as the protection conditions, can be made into any shape, routine road lighting design of our country is really brilliant, showing the day and night viewing Guandeng scene.

Semiconductor LED lamp has long life, its unique light source, has the advantages of easy and reasonable light distribution, color temperature variability, color index of the advantage of high light source power supply low voltage and current with the development trend of high efficiency and energy saving.

For the LED used in street lamp has a congenital advantage, its advantage lies in:

As a point light source, if the design is reasonable, to a large extent, it can directly solve the problem that the traditional spherical light source must rely on the light emission to solve the two times of light and light loss problem of 1.LED;

2 the uniformity of the light irradiation surface can be controlled, so that it can be completely uniform in the target area theoretically, which can avoid the waste of light in the light of the traditional light source;

3 color temperature can be selected, so in the application of different occasions, but also to improve efficiency and reduce costs is an important way;

4 technological progress is still very large space.

5 LED street lamp optical reasonable distribution

LED is different from the traditional lighting, which has the characteristics of light source, high brightness, narrow beam output and so on. Do LED street lamp should first take into account the limited use of luminous flux to the effective range of illumination, street lighting is required, the road surface is not beyond the scope of the effective range of street lighting. Therefore, the distribution range of effective control of light, LED light into a light strip along the direction of the road spreading, but also take into account the glare, is to put forward the higher requirements for designers of the new LED lamps.

6, the current LED street lamp technical performance indicators:

7, energy saving index calculation (12 hours per day):

Annual energy saving =365*12* (0.5-0.16) =1489.2

Annual electricity savings =1489.2*0.8=1191.36 yuan

After the transformation of LED street lamps, each lamp save electricity costs 1191.36 yuan per year. If the entire road surface are used LED street lamp will save a lot of electricity every year for the country, in terms of economic efficiency, save a lot of money.