With the acceleration of urbanization, LED street lamps have already entered the people's field of vision. Nowadays, LED street lamps are everywhere in big cities, which dot the night sky of cities. However, it still does not get the best use, because it has some limitations. In order to ensure that LED street lamps can play more roles in our life, we should solve these problems in future research and production and promotion.
First: the appearance structure of lamps and lanterns. The appearance of traditional street lamps and lanterns is basically the same, generally divided into light source and electrical parts, but due to the particularity of the LED light source and the different methods of light distribution, makes now the appearance of the LED street lamps and lanterns is varied, including appearance does not meet the requirements of running a lot of lamps and lanterns, and even some companies based on indoor standard applied to outdoor lamps.
Secondly, the connection between LED lamps and lamp poles is questionable. At present, almost all of the LED street lamps are fixed with screws, with very few holding bolts fixed. Thus, there are great hidden dangers to the safe operation of lamps.
The limitations of LED street lamps restrict their development.
Third: the replacement of the lamp parts. LED street lighting components generally have LED chip, power (driver) and lamp housing parts. The vulnerable parts are mainly power and chip. In general, the LED lamps and lanterns of the chip is electronic radiator can't change, and the power supply (driver) can be replaced, however, is in a lot of products in the power supply (driver) on the change of convenient enough, change is too time consuming.
As we all know, LED lamps can now live up to 30,000 to 50,000 hours. If the LED chip cannot be replaced, it means replacing the entire lamp, which can also cause waste.
Fourth, the life of the power supply (driver). Power (actuator) is the key component of LED lamps. At present, the quality of LED chip is generally guaranteed in the market, while the life of power supply (driver) is different. General manufacturers promise to guarantee two years is good. This comes down to the fact that the development of LED street lights has encountered a new bottleneck -- the quality of the power supply (driver) is not guaranteed, which restricts the development of LED street lamps.
The energy-saving effect of LED street lamp. In theory, solar energy saving, but the actual application of LED street lamp is not more than the high - voltage sodium lamp. Under the premise of lighting quality standard, high voltage sodium lamp (250~400W) light effect can reach 130~140 m/W. And 1 w high power LED street light much LED tube, the photosynthetic efficiency and high voltage sodium lamp is similar, but considering the ballast loss, utilization efficiency of lamps and lanterns and light way three factors, such as comprehensive consideration, the current LED lower efficiency than the high-pressure sodium lamp. And the small power LED street lamp (no more than 150W) is 10% less energy efficient than the high-pressure sodium lamp.
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