High pressure sodium lamp no match for LED street light

LED appear new features after the advent of white light, LED as new light source into the lighting field. In the pass a decade, LED technology and product development is very rapid, high power LED chips was appear, such as emergence, heat dissipation, these problems solving progress continuously, make LED street lamp start in township and village roads, residential district road, city branch on application, and further to the urban trunk road to try.

Here are several problems of application of LED street lamp and comparison to high pressure sodium lamp which be widely used .    

1, about the analysis and comparison of energy efficiency

Should according to achieve the same illumination (brightness) level, close to the lighting quality standards under the premise of comparing the lighting installation power.Because of the high pressure sodium lamp high-power tubes (250 ~ 400 W) high light efficiency, can reach 110 ~ 110 m/W, and small power tubes (100 ~ 150 W) photosynthetic efficiency is about 80 ~ 1001 m/W, and the effective photosynthetic efficiency of TEK LED street lamp is 160 lm/W, 210 W LED street lamp luminous flux can reach 33600 lm, LED street light than the high-pressure sodium lamp can energy saving 30% ~ 40%, the highest can amount to 50%.
00
2,  the analysis of  the light color and road lighting effect

High pressure sodium lamp of correlated color temperature (Tcp) is about 2100 k, is warm color temperature, the color rendering index (Ra) only 23 ~ 25, low CRI; LED street light now use a variety of color temperature (3000-6000 k), the Ra can reach 70 ~ 80, good color rendering.As fast track of motor vehicles, the main road, slant yellow light lamp, to see the front road, about 90 ~ 160 m distance effect better than white slightly, especially in the fog, dusty air condition, the warm white have an advantage, single from the color temperature to choose high pressure sodium lamp or LED street lamp can be.For sidewalks, commercial pedestrian street, residential area, such as roads, LED street light CRI is better than HPS, distinguish the situation more clearly, have more advantages.
540

3, economic analysis and contrast
For now, LED street light price is obviously higher than high pressure sodium lamp.A lot of people want to use 210 w LED street light to replace 400W high pressure sodium lamp, but all suffer from the high price. So does used 210 w led street lamp really so expensive?
689
From the above, we can find that less than two months we can earn early investment back from electricity.

In conclusion, high pressure sodium lamp no match for LED street light.If you want to buy LED street lights, you can contact us.TEK lighting can make detailed plan for you.

Comments

Post a Comment

Popular posts from this blog

The advantage of new style TEK LED panel light is obvious

Image
TEK  LED panel light , continue to use the reflective surface luminous technology, light after secondary reflection through high light transmittance mask projection, reduce glare, the light is more soft and comfortable to the human eye to watch not easy fatigue, particularly for students who have long time exposure to indoor lighting lighting, subway passengers or office staff. The application of the patented reflective material ensures the reflection efficiency of the light, and the original high light effect of the panel light is retained to the maximum extent. In order to guarantee the reliability of the use,   the design principle of TEK LED panel light  adhering to the "maintenance", improve heat dissipation performance, reduce the LED light failure of lights and lanterns, significantly prolong the service life of the lights and lanterns, saving the maintenance cost of lights and lanterns. TEK LED panel light is more intelligent TEK LED panel light can form a
Read more

What ways can see LED street lights to replace the high pressure sodium lamp?

Image
Under the condition of current technology,luminous efficiency of  LED street lamp  is more than high pressure sodium lamp, it is an indisputable fact that TEK LED street lamp can reach 160 LM/W. And HPS spectrum is concentrated in the yellow area, its color temperature is low, only 2000-2500 k, and relatively high color temperature such as LED, LED street light natural white temperature of 4000-5000 k, cold white is 5000-6500 k. At the same time compared with HPS, LED street lamp with high color rendering index, close to natural light in the actual lighting, can bring a person the sense of comfort. Followed by "irradiation uniformity", although the  LED street lamp  lighting is relatively concentrated, but can be by the light path of the second design, 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, so as to realize the uniformity of illumination.
Read more

Rule of thumb: what are the installation instructions of DALI LED high bay light?

Image
DALI LED high bay light , also known as LED warehouse light, mainly used in factory workshop, warehouse, exhibition hall, etc., have gradually entered homes, because it is using the latest LED lighting energy saving technology, high reflectivity, high power, high utilization rate of light source. But good lamps and lanterns need specification installation, to highlight its advantages, below for everyone to explain the DALI LED high bay light installation: 1，Define DALI LED high bay light installation height according to the lighting environment, because the environment will change the reflection efficiency of lamps and lanterns. Usually the height of DALI LED high bay light  should be above 5 meters, thread is not close to the lamp shell. If installation height is less than 3 meters, protective measures must be taken to prevent a vehicle to touch. 2，TEK DALI LED high bay light protection class is IP65, choose waterproof transformer, chip packaging place with high temperature resi
Read more