1. Its own characteristics -- unidirectional light, no diffuse light, ensuring light efficiency.
2. LED street lamps have a unique secondary optical design to illuminate the required lighting area, further improving the lighting efficiency, so as to achieve the purpose of energy conservation.
3. LED has reached 110-130lm/W, and there is still a large space for development, and the theoretical value is up to 360lm/W. The luminous efficiency of high pressure sodium lamp increases with the increase of power. Therefore, the overall luminous efficiency of LED street lamp is stronger than high pressure sodium lamp. (This overall light effect is theoretical; in fact, the light effect of high-pressure sodium lamps above 250W is higher than that of LED lamps).
4, LED street light color performance than high pressure sodium lamp much higher, high pressure sodium lamp color rendering index only about 23, and LED street color rendering index reached more than 75, from the perspective of visual psychology, to reach the same brightness, LED street light illumination average can be reduced than high pressure sodium lamp more than 20%.
5, light decay is small, less than 3% of a year, the use of 10 years still meet the requirements of the road, and high pressure sodium light decay is large, about a year has dropped more than 30%, therefore, LED street lamp in the use of power design can be lower than high pressure sodium lamp.
6. LED street lamps are equipped with automatic control energy-saving devices, which can achieve the maximum possible power reduction and energy saving under the circumstances of meeting the lighting requirements of different periods. Can achieve computer dimming, time control, light control, temperature control, automatic inspection and other humanized functions.
7, long life: can use more than 50,000 hours, provide three years of quality assurance. The disadvantage is that the life of the power supply is not guaranteed.
8, high light efficiency: using more than 100LM chip, compared to the traditional high pressure sodium lamp can save more than 75%.
9. Easy installation: no need to add buried cable, no need for rectifier, etc., directly install on the lamp pole or embed the light source into the original lamp housing.
10. Excellent heat dissipation control: temperature is controlled below 45 degrees in summer, and passive heat dissipation is adopted. Insufficient heat dissipation protection in summer.
11. Reliable quality: all the circuit power supply USES high-quality components, and each LED has a separate over-current protection, so there is no need to worry about damage.
12, uniform light color: no lens, not to improve the brightness at the expense of uniform light color, so as to ensure the uniform light color 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 the above principle is remarkable, replacing the high pressure sodium lamp can save more than 60% electricity.
Low maintenance cost: Compared with traditional street lamps, LED street lamps have a very low maintenance cost. After comparison, all the input costs can be recovered in less than 6 years.