Advantages of LED street lights

1. The characteristics of the LED street light itself - unidirectional light, no light diffusion, to ensure light efficiency;

2. The LED street light has a unique secondary optical design, which irradiates the light of the LED street light to the area that needs to be illuminated, further improving the lighting efficiency and achieving the purpose of energy saving;

3. The light source efficiency of LED has now reached 100lm/W, and there is still a lot of room for development, with a theoretical value of 250lm/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 luminous efficiency is theoretical, in fact, the luminous efficiency of high-pressure sodium lamps above 250W is higher than that of LEDs) .

4. The light color rendering of LED street lamps is much higher than that of high-pressure sodium lamps. The color rendering index of high-pressure sodium lamps is only about 23, while the color rendering index of LED street lamps is above 75. From the perspective of visual psychology, to achieve the same brightness, the average illuminance of LED street lamps can be It is more than 20% lower than the high pressure sodium lamp, (refer to the British lighting standard);

5. The light decay of LED street lights is small, less than 3% in one year, and it still meets the requirements of road use illuminance after 10 years of use, while the high pressure sodium light decay is large, and it has dropped by more than 30% in about a year. Therefore, LED street lights are in The design of the power used can be lower than that of high pressure sodium lamps;

6. The LED street light has an automatic control energy-saving device, which can achieve the maximum possible power reduction and save energy under the condition of meeting the lighting requirements of different periods.

7. LED is a low-voltage device, the voltage driving a single LED is a safe voltage, and the power of a single LED in the series is 1 watt, so it is a safer power supply than using a high-voltage power supply, especially suitable for public places (for example: street lights. lighting, factory and mine lighting, automotive lighting, civil lighting, etc.)

8. Each unit LED chip has only a small volume, so it can be prepared into devices of various shapes and is suitable for variable environments.

9. Long service life: It can be used for more than 50,000 hours and provides a three-year quality assurance. The disadvantage is that the life of the power supply is not guaranteed.

10. High luminous efficiency: Using chips of ≥100LM or more can save energy by more than 75% compared to traditional high-pressure sodium lamps.
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11. Easy installation: no need to bury cables, no rectifiers, etc., directly install the lamp head on the lamp pole or insert the light source into the original lamp shell.

12. Excellent heat dissipation control: The temperature is controlled at about 45 degrees in summer, and passive heat dissipation is adopted. Insufficient cooling protection in summer

13. Reliable quality: The circuit power supply adopts high-quality components, and each LED has its own over-current protection, so there is no need to worry about damage.
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14. Uniform light color: no lens is added, and uniform light color is not sacrificed to improve brightness, so as to ensure uniform light color without aperture.

Based on the above principles, the energy-saving effect of high-power LED street lamps is remarkable, and the replacement of high-pressure sodium lamps can save more than 60% of electricity. to be investigated
Low maintenance cost: Compared with traditional street lights, the maintenance cost of LED street lights is extremely low. After comparison, all investment costs can be recovered in less than 6 years.