LED street light is different from conventional street light. The LED light source is low-voltage DC power supply, high-efficiency white light synthesized by GaN-based power type blue LED and yellow. It has high efficiency, safety, energy saving, environmental protection, long life, fast response, high color rendering index, etc. Unique advantages can be widely applied to roads. The cover can be made with high temperature resistance up to 135 degrees and low temperature resistance up to -45 degrees.
1, its own characteristics - the unidirectional nature of light, no light diffusion, to ensure light efficiency.
2, LED street light has a unique secondary optical design, the light of the LED street light is irradiated to the area of the required illumination, further improving the light efficiency to achieve energy saving purposes.
3, LED has reached 110-130lm / W, and there is still a lot of room for development, the theoretical value of 360lm / W. The luminous efficiency of the high-pressure sodium lamp increases with the increase of power. Therefore, the overall luminous efficacy LED street lamp is stronger than the high-pressure sodium lamp; (this overall luminous effect is theoretical, in fact, the luminous efficiency of the high-pressure sodium lamp above 250W is higher than that of the LED lamp. ).
4. The 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 reaches 75 or more. From the perspective of visual psychology, the same brightness is achieved, and the illumination of LED street lamps can be averaged. More than 20% lower than high pressure sodium lamps.
5, the light decay is small, the light decay of less than 3% in one year, still meets the road requirements after 10 years of use, and the high-pressure sodium light decays, which has dropped by more than 30% in a year or so. Therefore, the design of LED street light in use power Can be lower than high pressure sodium lamps.
6. LED street lights have automatic control energy-saving devices, which can achieve the maximum possible power reduction and energy saving when meeting the lighting requirements of different time periods. It can realize computer dimming, time-segment control, light control, temperature control, automatic inspection and other humanized functions.
7, long life: can use more than 50,000 hours, providing three years of quality assurance. The downside is that the life of the power supply is not guaranteed.
8, high light efficiency: the use of chips above ≥ 100LM, compared to traditional high-pressure sodium lamps can save more than 75%.
9, easy to install: no need to add cables without rectifiers, directly installed on the pole or the light source nested in the original lamp housing.
10, excellent heat dissipation control: summer temperature control below 45 degrees, and passive cooling, summer heat protection is insufficient.
11, reliable quality: 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: no lens is added, and the uniform light color is not sacrificed to improve the brightness, so as to ensure uniform color without aperture.
13, LED does not contain harmful metal mercury, will not cause harm to the environment when it is scrapped.
The energy saving effect of the above principle is remarkable, and the high-pressure sodium lamp can save more than 60% of electricity.
Low maintenance cost: Compared with traditional street lamps, the maintenance cost of LED street lamps is extremely low. After comparison, the total input cost can be recovered in less than 6 years.