Reflective LED lamps are superior to traditional tungsten halogen lamps
The test results show that the light efficiency index of most reflective self-ballasted LED lamps has been greatly improved compared with the past, reaching a level of about 60lm/W, which is about 3 times higher than that of traditional tungsten-tungsten reflector lamps. The lumen maintenance rate of the two lamps is not much different at 4000 hours, but there is a significant difference in the lumen maintenance rate of the lamps. The lumen maintenance rate of the lamps has shown a significant difference at 6000 hours. The reflective self-ballasted LED lamp uses LED as the light source, and is mainly used to replace the traditional tungsten-tungsten reflector lamp at the current stage. Compared with the tungsten halogen reflector lamp, the light efficiency of the reflective self-ballasted LED lamp is greatly improved. For the reflective self-ballasted LED lights, the National Development and Reform Commission, the Ministry of Housing and Urban-Rural Development, and the Ministry of Transport and the Ministry of Transportation issued the document on the reform and development office [2010] No. 2082 on August 30, 2010, and launched the semiconductor. Lighting product application demonstration project, including 20 semiconductor indoor lighting applications covering reflective self-ballasted LED lights; China Quality Certification Center also officially released CQC3129-2010 "reflective self-ballasted LED lamp energy saving" in December 2010 Certification Technology Specification and CQC31-465137-2010 "Reflective Self-Ballasting LED Lamp Energy-Saving Certification Rules" initiated energy-saving certification for reflective self-ballasted LED lamps. The national standards of "reflective self-ballasted LED lamp performance requirements" and "reflective self-ballasted LED lamp performance test methods" drafted by the National Electric Light Source Quality Supervision and Inspection Center (Beijing) have also been submitted for approval. Based on the current status and development and application prospects of LED lighting products, the National Electric Light Source Quality Supervision and Inspection Center (Beijing) has long been committed to the detection and evaluation of LED lighting products including reflective self-ballasted LED lamps. The reflective self-ballasted LED lamps are described in terms of light efficiency, luminous flux maintenance rate and temperature characteristics. Significant improvement in light efficiency indicators Light efficiency is one of the important indicators for evaluating lamp performance and energy efficiency. The test results show that the light efficiency index of most reflective self-ballasted LED lamps has been greatly improved compared with the past, reaching a level of about 60lm/W, which is about 3 times higher than that of traditional tungsten-tungsten reflector lamps. Reasonable lighting design and application will surely reflect the corresponding energy saving effect. On the other hand, it should be noted that the efficacy and initial color parameters of the lamp are only partial parameters that characterize the initial performance of the lamp and do not provide a comprehensive assessment of the performance of the lamp. Under such conditions, as an illumination product with LED as the light source, the maintenance performance of the light flux and color parameters is also an important evaluation index. The test results show that the luminous flux maintenance rate of the two lamps is not much different at 4000 hours, but there is a significant difference in the luminous flux maintenance rate of the lamps. The luminous flux maintenance rate of the lamps has shown a significant difference at 6000 hours. This performance index and performance of the lamp will directly affect the service life of the lamp. Therefore, when evaluating the performance of the lamp, attention should be paid to the long-term maintenance of the light and color of the lamp. Compact products should pay attention to heat dissipation design Temperature is another important factor affecting LED lighting products. This is especially true for small-sized compact LED lighting products such as reflective self-ballasted LED lamps. Moreover, the installation environment of such lamps is also easy to improve the lamps. Ignite the working environment temperature, which may affect the performance of the lamp. In order to evaluate the performance of the ignition ambient temperature on the performance of reflective self-ballasted LED lamps, a variety of lamp samples are required for testing. The monitoring results of the lamp housing temperature under different ignition temperature indicate that different lamp samples are affected by factors such as heat dissipation structure design, and there is a certain difference in lamp housing temperature (maximum lamp housing temperature difference is about 8 °C), lamp housing temperature It is basically linear with the ignition temperature. Comparing the temperature and optical parameters of the lamp under different ignition temperature, it can be seen that the change of the light parameters of the lamp shows different trends with the change of the ambient temperature of the ignition point. It should be done in the performance evaluation of the lamp and the corresponding lighting application design. Fully consider it. However, it should also be noted that there is no direct correspondence between the temperature of the lamp housing and the light parameters of the lamp. The performance of the lamp cannot be directly evaluated from the temperature of the lamp housing. The performance evaluation indicators of reflective self-ballasted LED lamps include initial characteristics, maintenance characteristics, temperature characteristics, etc., and specifically include optical parameters such as optical flux, luminous efficacy, central light intensity, and chromaticity characteristics. The performance of the selected components is constrained by the overall structural design of the lamp. When evaluating the performance of the lamp and the design of the lighting, various factors should be considered to ensure the good application of the lamp.
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