LED street lamps are different from conventional street lamps in that the LED light source uses low-voltage DC power supply, and the efficient white light composed of GaN based power blue LED and yellow, which has the unique advantages of high efficiency, safety, energy conservation, environmental protection, long life, fast response speed, high Color index, and can be widely used in roads. The outer cover can be made and can withstand high temperatures up to 135 degrees Celsius and low temperatures up to -45 degrees Celsius.
Advantage
1. Its inherent characteristics - the unidirectionality of light, without light diffusion, ensuring lighting efficiency.
2. LED street lights have a unique secondary optical design, which illuminates the light of LED street lights to the required lighting area, further improving lighting efficiency and achieving energy-saving goals.
3. The LED has reached 110-130lm/W, and there is still great room for development, with a 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; The overall light efficiency is theoretical, but in fact, the light efficiency of high-pressure sodium lamps above 250W is higher than that of LED lamps.
4. LED street lamps have a much higher light color rendering performance than high-pressure sodium lamps. The Color index of high-pressure sodium lamps is only about 23, while the Color index of LED street lamps reaches more than 75. From the perspective of visual psychology, the same brightness can be achieved. The average illuminance of LED street lamps can be reduced by more than 20% compared with high-pressure sodium lamps,.
5. The light attenuation is small, with less than 3% in one year, and it still meets the road requirements after 10 years of use. However, the high pressure sodium lamp has a large attenuation, which has decreased by more than 30% in about one year. Therefore, LED street lamps can be designed with lower power consumption compared to high pressure sodium lamps.
6. LED street lights have automatic control energy-saving devices, which can achieve maximum power reduction and save electricity while meeting lighting requirements at different time periods. It can achieve humanized functions such as computer dimming, time slot control, light control, temperature control, and automatic inspection.
7. Long service life: can be used for over 50000 hours, providing a three-year quality guarantee. The drawback is that the lifespan of the power supply cannot be guaranteed.
8. High light efficiency: By using chips with a capacity of ≥ 100LM or higher, it can save more than 75% energy compared to traditional high-pressure sodium lamps.
9. Easy installation: No need to bury cables or rectifiers, directly connect the installation to the lamp pole or nest the light source into the original lamp housing.
10. Excellent heat dissipation control: In summer, the temperature is controlled below 45 degrees Celsius and passive heat dissipation is adopted, resulting in insufficient heat dissipation guarantee in summer.
11. Reliable quality: All circuit power supplies are made of high-quality components, and each LED has a separate overcurrent protection, so there is no need to worry about damage.
12. Uniform color of light: Without a lens, uniform color of light is not sacrificed to improve brightness, thus ensuring uniform color of light without aperture.
13. LED does not contain harmful metal mercury and will not cause harm to the environment when scrapped.
The energy-saving effect of combining the above principles is significant, and replacing high-pressure sodium lamps can save more than 60% of electricity.
Low maintenance cost: Compared to traditional street lights, LED street lights have extremely low maintenance costs. After comparison, all investment costs can be recovered in less than 6 years.
