Users represented by urban street light management departments are more concerned about the maintenance performance of street lights. According to the analysis, the maintenance performance of the sodium lamp is good. The lamp only needs to be scrubbed and does not need to be replaced. The ballast is rarely replaced. The light source is replaced once every 3 to 5 years, which is also very convenient. For LED street lights, LED tubes, modules (including lenses, etc.), power supply devices, etc., components and components are more likely to be damaged, and maintenance and replacement are also difficult. It is likely to be replaced as a whole. The cost is relatively high. solve. There is no standard to follow for LED street lights, which is detrimental to bidding, ordering, use and maintenance. In summary, we believe that LED street lights are new things that have emerged in recent years. With the development of the LED industry, there will be greater development and broad prospects. However, there are still many problems in the current application status. Although there are a few companies engaged in the research, development and production of LED street lamps, they have made great efforts to solve some technical problems and promote the advancement of the product. They are worthy of the elite of the industry; But on the whole, the level, quality, and quality of LED street lamp products are very different, and there is no standard to regulate them. Some are eager for quick success, low energy efficiency, poor heat dissipation, large light decay, and short service life. , Without a reasonable light distribution of lamps and lanterns, it cannot meet the requirements of popularization and use. We hope that scientific research, teaching, design units, users and manufacturers will work together to solve various technical problems, improve product levels, formulate and improve a series of standards, and make preparations for 

popularization and application. In the promotion and application, we should adhere to the step-by-step approach, starting from the pilot, summing up experience, and continuously improving; we should start with the application of low-power LED street lights to branch roads and residential roads, and then develop to main roads and high-power street lights, and gradually advance. No matter what light sources and lamps are used, they should comply with the "Urban Road Lighting Design Standard" (CJJ45-2006), including brightness, illuminance, uniformity and other quality indicators. Insist on seeking truth from facts, avoid overly exaggerating words, avoid raising yourself in comparison, and avoid lowering others, adhere to the lighting quality, illumination (brightness) level, adhere to the combination of technology and economy, application and energy conservation and environmental protection, prevent excessive speculation, for the user The service is responsible for the user, don't mislead the user, and give the user a true face. Don't talk lightly about what light source is "replaced". We should continue to improve ourselves after years or years of hard work in order to become a high-quality and efficient new type of light source and lamp for users to choose from. Let the user speak, let the use effect to evaluate. Luminous efficiency: The unit is lumens per watt Lm/w. That is, the ability of an electric light source to convert electrical energy into light energy is expressed by dividing the emitted luminous flux by the power consumption.