The rapid development of LED technology, the rise of the light efficiency, LED spotlights technology is also fast development. The LED spotlights in almost alternative to traditional halogen-based. Compared with traditional lamps, LED spotlights has significant advantages in energy saving and long life. With the lower cost of LED spotlights, LED spotlights gradually began to spread. This article from LED spotlights technical requirements, specifications and types of common LED spotlights, LED spotlights structure, LED spotlights to buy common sense, and LED spotlights the direction of development of these aspects do brief reflection led gu10.
LED spotlights technical requirements
LED spotlights at this stage, mainly to replace traditional halogen-based, most of the relevant safety requirements reference traditional lighting requirements, and in accordance with the characteristics of the LED lights to form a safety certification standards. Currently, in LED spotlights certification, the international community is mainly to European CE and UL certification in North America-based, voluntary certification (CQC) in China.
CE certification contains LVD and EMC, LVD is executed in accordance with the EN60968 standard (will be upgraded IEC 62.56 thousand); perform EMC according to EN55015, EN61547, EN61000-3-2 and EN61000-3-3 standard. In addition, LED lights are usually also need additional reference to IEC 62471, light biosafety testing. In North America, it is usually required UL safety and FCC EMC certification. UL implementation of standards UL1993, UL8750 and UL1310; FCC implementation of standards for the FCC PART15 Subpart B. In China, LED spotlight is a voluntary certification (CQC), perform standard GB24906-2010 (safety) and GB 17743-2007 (electromagnetic compatibility).
In addition, the performance of LED spotlights, there are many other standard requirements. U.S. Energy Star (ENERGY STAR) related requirements; energy certification requirements in China, perform standard of CQC 3129-2010. These requirements are the color temperature of the LED spotlights led gu10, color rendering index, initial luminous flux, luminous efficiency, lumen maintenance, life, center light intensity, nominal power, power factor, and product identification provisions.
The life of many electronic products based on broken to judge, but the LED is a long-life light source can be used for a long time are not bad. But the output of the light flux with time and attenuation, so the industry, generally light decay to 70% of the necessary time to define the life of the G24 LED light source, i.e. L70 is. With advances in technology, the LED light fades more and slow to complete test light fades to 70% of the time it is difficult to do. Exponentially due to the life of the electronic product, the LED is usually done shorter aging, by sampling the light decay data, and then to the exponential function to the projected light decay to 70% of time led gu10.