What are the common advantages of LED street lights

1, its own characteristics - unidirectional light, no light diffusion, to ensure light efficiency.

2, LED street lights have a unique secondary optical design, the light of LED street lights to the required lighting area, further improve the light efficiency, in order to achieve energy saving purposes.

3, LED has reached 110-130lm/W, and there is a lot of room for development, the theoretical value of 360lm/W. The luminous efficiency of high-pressure sodium lamps increases with the increase of power, therefore, the overall luminous efficiency of LED street lamps is stronger than that of high-pressure sodium lamps; (This overall light efficiency is theoretical, in fact, the light efficiency of high-pressure sodium lamps above 250W is higher than that of LED lamps).

4, LED street light color rendering is much higher than high pressure sodium lamp, high pressure sodium lamp color rendering index is only about 23, and LED street light color rendering index reached more than 75, from the visual psychological point of view, to achieve the same brightness, LED street light illuminance average can be reduced by more than 20% than high pressure sodium lamp.

5, the light failure is small, the light failure of a year is less than 3%, and the road requirements are still met in 10 years, and the high pressure sodium light failure is large, and the power design of the LED street lamp can be lower than the high pressure sodium lamp in a year or so.

6, LED street lights have automatic control energy-saving device, can achieve the maximum possible reduction in power to meet the lighting requirements of different periods of time, save energy. It can realize computer dimming, time division control, light control, temperature control, automatic inspection and other humanized functions.

7, long life: can use more than 50,000 hours, to provide three years of quality assurance. The disadvantage is that the life of the power supply is not guaranteed.

8, high light efficiency: The use of ≥100LM chip, compared with the traditional high-pressure sodium lamp can save more than 75%.

9, easy installation: no need to bury the cable without rectifier, etc., directly installed in the lamp pole or the light source nested in the original lamp shell.

10, excellent heat dissipation control: the summer temperature is controlled below 45 degrees, and the passive heat dissipation method is used, and the heat dissipation guarantee is insufficient in summer.

11, reliable quality: the circuit power supply all use high-quality components, each LED has a separate overcurrent protection, no need to worry about damage.

12, uniform light color: do not add lens, do not sacrifice uniform light color to improve brightness, so as to ensure uniform light color without aperture.

13, LED does not contain harmful metal mercury, when scrapped will not cause harm to the environment.

The energy-saving effect of the above principles is significant, and the power saving can be more than 60% instead of high-pressure sodium lamps.

Low maintenance cost: Compared with traditional street lights, the maintenance cost of LED street lights is extremely low, and after comparison, the full input cost can be recovered in less than 6 years.

Shortcomings of LED street lamp

1, a single LED low power. In order to obtain high power, multiple parallel use is required.

2, low color rendering. The color displayed under LED irradiation is not true for incandescent lamps, which is analyzed from the spectral distribution and belongs to a technical problem.

3. Light spots. Due to the defects in the manufacturing process of the white LED itself and the matching error with the reflection cup or lens, it is easy to cause the "yellow circle" problem.

4, LED irradiation uniformity problem. If the secondary optical design is not carried out, the irradiation of the LED is relatively concentrated, so it is necessary to carry out the secondary optical design, so that the light intensity distribution diagram is bat shaped.

5, LED light failure problem. Compared with low-power LED, the light decay of high-power LED street lights will be much better. But low-power leds emit very little heat. The high-power LED is the problem that there is no way to solve the heat dissipation, and the brightness will be significantly reduced after heating, so the power can not be larger. The largest Spark LED street lamp sold on the market is 360W.