Countries to actively promote the implementation of energy saving projects, especially for business opportunities in China, a large LED lights LED lights manufacturers have been seriously affected. Street lighting in the city an important part of traditional street lights often used high-pressure sodium lamps, high pressure sodium Zhengti polishing effect caused by the low of the shortcomings of massive energy waste, so, Kaifa new efficient, energy saving, long life, Xiansezhishuo high, environmental protection The lights of the city lighting energy conservation is of great significance.
Characteristics of today's LED lights:
High-power LED street lamp with conventional high pressure sodium lamps is different is that high-power LED street lamp light source with low voltage DC power supply, power from the GaN-based blue LED and yellow phosphor-based synthesis of highly efficient white LED, LED (Light Emitting Diode, abbreviated as LED) is based on the formation of semiconductor PN junction with a weak high-power solid-state LED light source can, in certain positive bias voltage and injection current into the P region into the hole and electron diffusion region N to the active zone is issued by the radiative photon light energy directly into electrical energy.
LED lamp as light source, which compared the traditional lamp light source has many advantages.
1, LED street light, point of itself, does not diffuse light, to ensure optical effect;
2, LED lamp has a unique secondary optical design, LED street lamp light shines on the area required for lighting, that is the road to further improve the light efficiency and save energy;
3, LED light source efficiency of the current has reached 100lm / W, but there is still much room for development, the theoretical &#118alue can reach 250lm / W. The luminous efficiency of high pressure sodium lamp with the power to increase only increase, and therefore, the overall optical efficiency stronger than the high pressure sodium lamp LED lamps;
4, LED street light color rendering than the high-pressure sodium lamp high pressure sodium lamp color rendering index of only 23, while the LED lamp color rendering index can reach 75 or more, from the visual psychological perspective, to achieve the same brightness, LED street lamp illumination average of lower than 20% above the high-pressure sodium lamp (lighting the light of British standard); and, in the middle of the visual level, the human eye in high color temperature environments with low color temperature than the environment can identify more easily things, to avoid the occurrence of some danger;
5, LED street light decline of small, one-year decline of less than 3% of light, using 10 years of road use is still to achieve illumination requirements, therefore, LED street lamp design, the use of power can be lower than the high-pressure sodium lamp;
6, LED lights that automatically adjust light, can achieve to meet the lighting requirements at different times, the maximum possible reduction in power, saving energy;
7, LED is a low-voltage direct current devices, drive voltage single LED voltage for safety, it is more secure than using high voltage power supply, especially for public places. DC characteristics particularly suited to LED and solar energy, wind power to combine;
8, each unit LED only a very small grain size, it can be fabricated into various shapes of the device, and suitable for volatile and easy to shock the environment;
9, long life: life expectancy theory can be used for more than 50,000 hours;
10, LED can be frequent switch and forget about the damage;
11, easy to install: LED street lamp directly replace the original installed in the pole lamp sodium lamp |