Why are electrodeless lamps not widely used?

The reason is that the current LED industry projects (not only in the field of lighting) are all state-led, aiming at industrial upgrading, but it is not easy to achieve industrial upgrading. Another problem is loose monetary policy and the influx of foreign hot money. There are a lot of surplus funds in China, so we need to find a breakthrough in investment. Therefore, in the absence of core competitiveness and technical strength, there was a sudden rush in two or three years. However, under the lively appearance, it is a bleak reality, and a large number of uncompetitive LED lighting enterprises are likely to die in the future. In addition to the above internal reasons, the industrial public relations of foreign LED giants have also played a hidden role in promoting. In contrast, electrodeless lamps were mainly promoted by several domestic electrodeless lamp R&D and manufacturing enterprises, which belongs to enterprise market behavior. The market behavior of several electrodeless lamp lighting enterprises cannot be compared with the state-led administrative behavior. In addition, the application field of electrodeless lamps is much narrower than that of LEDs, and there are far fewer powerful manufacturers who participate in and own patented technology than upstream and downstream enterprises that make LEDs, and the corresponding promotion efforts are much smaller. LED has advantages in small and medium-power backlight landscape decoration lighting, but in high-power functional lighting, electrodeless lamp is undoubtedly better. At present, with the deepening and expansion of the application of electrodeless lamps, there will be great development potential in the next few years in terms of technology, quality and price in high-power lighting that LED is not competent at present. The future of the new light source depends on the reputation of the market and users. The electrodeless lamp field, especially the low-frequency field, such as Fujian Yuanguang, Shanghai Hongyuan and Shanghai Yuanming, which started earlier, all have independent patented technology and core competitiveness. Electrodeless lamp is a new type of light source developed by electromagnetic induction on the basis of mature lighting fluorescent lamp (different from the original LED special transformation). Its main feature is that the actual life of filament and electrode is the longest at present (LED is only the theoretical life of high power), and it has the advantages of low light attenuation, high light efficiency, energy saving, good color temperature, soft light and no glare. The disadvantage is that the surface light source is large (special lamps are needed, which limits the application place) and has not been large. At the same time, the technical difficulty and production input are much smaller than those led by foreign multinational companies, but they are more in line with China's national conditions.

At present, the biggest problem of high-power LED is that there is no large-scale application abroad, because the LED originally used as backlight display is not mature in technology, especially the light attenuation caused by high-power LED heating greatly reduces the theoretical life of LED. At the same time, LED lighting system involves a series of links such as light source, packaging, lamps, power supply and control. The complexity of the system also determines that the problem of a certain link will affect the final use efficiency. For example, the theoretical life of L E D street lamps is more than 5 years, but with the current technology, it will definitely be replaced in less than two years.

In the LED industry chain, epitaxial wafers and chips account for 70% of the profits, while LED packaging and application only account for about 30% of the profits. At present, epitaxial wafer production is basically controlled by foreign enterprises (domestic MOCVD needs high-priced imports); In terms of chips, domestic enterprises are mainly concentrated in the low-power middle and low-end fields, and there are still technical, mass production and quality problems in the high-power (used for lighting) high-end fields.

Therefore, after considering the above factors, savvy foreign lighting giants have jointly blocked patents and monopolized the upstream high-end market of LED industry. China is once again subject to people and at the bottom of the industrial chain. Epistar Corporation, Toyoda Gosei, Corey Cree, Osram, Zumtobel Group of Austria, Royal Philips Electronics, Seoul Semiconductor, TOE of Europe and Japan, Toyoda Gosei Co., Ltd. of Japan, Showa Denko K.K and other LED giants all adopted the expansion mode of "integrating Lian Heng" and established a strict patent network around the world.

It is difficult for China company to produce high-power lighting LED light sources with independent intellectual property rights, and the patent transfer must pay huge patent fees, so the imitation export faces great legal risks (similar to the automobile industry or DVD). This is also the main reason why high wattage LED products with relatively good quality remain high and will exist for a long time. Small and medium-sized power LED has independent ability in China, and the field of high power and high wattage is under the patent barrier of foreign giants. At this stage, blindly promoting immature high-power LED lighting is to do LED product experiments for multinational giants in disguise and be a pioneer in cultivating their markets! A large number of LED enterprises in the middle and lower reaches of China have fallen. The upstream giants are unscathed and full of pots. So at present, multinational giants only sell high-power LED light sources with the highest profit! If one day the application and market of high-power LED are mature, they will enter the market in a large scale with systematic product applications, and the giants can attack the city more freely and provide them with huge market profits. They're ready! What about our LED lighting enterprise? Without self-core competitiveness, does the controlled industrial upgrading upgrade its own industry or provide markets and profits for industrial upgrading in other countries?