China led blog

LED domestic lighting market is like a raging fire of large-scale publicity, LED energy saving and environmental protection the concept gradually for the people to understand. Many industry companies to be eager for a fight, itch for a try, to swoop into the LED lighting market, with a view to divide a cup of a thick soup. LED bulbs market really as we expected, have tens of thousands of households into the? The author with 5 years of experience in business talk about LED domestic lighting 5 years of product application and market analysis.

LED since its inception, has been to domestic commercial application of lighting direction, to LED lamps for example, from early DIP plug-ins to the SMD patch beads, beads, the market experienced a not small pains only gradually recovered to found their own inadequacies.

Early in order to save LED manufacturing cost, the price advantage to win, many manufacturers use constant voltage drive power, high light DIP plug-in lamp. Have more very person part manufacturers to improve the supply current to make LED work overload in order to improve the LED lamp brightness, short-term to customers caused by lamp high brightness illusion. The result is a lamp to use after a period of time of severe attenuation, power supply noise is very big, people in the eyes of the high-tech products into life far below their expectation value. While the LED product ‘s image also suffer a disastrous decline. This is the result of customers and manufacturers of common cause, blindly pursuit price with such a bitter cup for the use of people to taste.

Because the DIP element radiating limitations ( the only two pins to provide thermal transfer medium, the radiating area minimum) resulting in short-term beads severe attenuation, destined to be eliminated. So SMD chip beads into people’s vision, relative to DIP, SMD element radiating area is increased by several times, good heat dissipation effect of many, of course the price too high for many. Manufacturers generally use little power to 35285050 chips, so LED bulbs itself radiating problem got preliminary settlement, coupled with the constant voltage drive power to the LED best driver – constant current power supply; and LED stable quality performance to a great height; because people pursuit LED product appearance beautiful psychology effect of partial manufacturer, LED driving power and welding beads aluminum substrate do together, outside with a refined LED tubular materials, a high-tech fine LED bulbs was born, but the overall product LED bulbs radiating thrown to the side. Because the LED in the course of their work will release a lot of heat, so that the tube core temperature rises rapidly, the higher the LED power, heating effect is bigger, LED PN junction temperature rise to 80 degrees Celsius to LED chip they have a great influence and cause failure . LED chip PN junction temperature will lead to a light emitting device performance variations and the conversion efficiency of attenuation, serious or even failed, according to test results show: LED itself temperature rise of 5 degrees Celsius, the luminous flux is down 3%, and LED bulbs must pay attention to LED light source heat dissipation work itself, in the situation as far as possible to increase the radiating area of the LED source itself, as far as possible to reduce LED work itself temperature, if conditions allow, can be the best power source separated local and local, the pursuit of small volume regardless of lighting and power supply working temperature is not desirable, in appearance, compact appearance, exquisite, but life is short, light is increased, which is typical of the “penny wise and pound foolish”.

As the LED bulbs application development, a new generation of LED bulbs appeared in people’s field of vision – the LED panel lights source lamp.

The LED panel lights source lamp is characterized in that the light emitting surface is a surface light source, subversion of the LED point light source characteristics, but also effectively solve the glare problem of point light source. LED panel lights source lamp using solid crystal technology to the chip directly connected together, cancelled the packaging steps, series and parallel combination with yellow fluorescent powder, coupled with effective radiating materials and high-quality constant current power supply, it is the new generation of LED panel lights source lamp.

At present domestic LED panel lights source lamp manufacturers are not many domestic at present, make industrialization Hebei Mitac photoelectric technology limited, as well as Shanghai or United States of Electronic Science and Technology Company Limited ( www.winstarled.com ). We get to Shanghai or the 18W plane light source lamps for example, the LED panel lights source lamp package using professional solid crystal technology, the purity of aluminum radiator, power and aluminum substrate spaced for isolated power supply, power supply, testing the surface of the lamp body temperature of 40 degrees. The precision of constant current 230Ma + 3%, the national electric light source center of detection data is 1500 lumen brightness, 3000 hours of light 2%. Meet the basic LED long-lasting lighting features, and the LED panel lights source lamp without sacrificing light source illumination conditions ( patch generally use the opal scrub technology to solve the glare, light loss 20%) complete and effective solution to the LED glare problems. In view of the development of LED lighting, LED quality stability performance becomes more important, LED long-lasting lighting must win support among the people, and the formation of stable and efficient after sale service system.

LED lighting brand effect is relatively weak, almost no truly national brand, unlike traditional lighting opple focus on energy-saving lamps, outdoor lighting business its brand image has been deeply thousands of households. LED lighting is still a long way to go, LED lamp call for the development of industry leader, led to many small and medium-sized LED fighting a way, revitalize the LED lighting industry!