LED lighting market recognition needs to be improved

There were more than 1,500 LED exhibitors at the 16th Guangzhou International Lighting Fair that had just concluded in Pazhou, Guangzhou. It can be said that LED has become the only highlight of the show.

Regrettably, although LED products have been significantly improved in technology, the products cover various fields such as home, business, and public utilities, but they are mostly used in commercial and public markets, and there are not many companies in home applications. Willing to come up with an effective promotion program. One interior designer who participated in the exhibition did not hide his disappointment: how many years after the LED lit up the home, it is still "the ideal is full, the reality is cruel."

Product: Home LED light source available

The reporter saw from the lighting exhibition that almost all of the lighting giants participated in the exhibition. Even the inventor of GE, GE Lighting, was not far behind. It brought two new products and many efficient lighting solutions for the first time. Bi Jianwen, president and CEO of GE Lighting Asia Pacific, told reporters that GE has more than 10 years of experience in LED applications, involving indoor and outdoor areas. GE's LED lighting equipment is sold in 56 countries around the world. This time, the exhibition indicates that GE Lighting has accelerated its pace of entry into China.

Panasonic was also the first time to participate in the exhibition and exhibited the latest Led Lighting Fixtures with excellent light quality. Philips, Osram, Japan’s Roma, Toshiba, and others also displayed their capabilities and exhibited various new technologies in the LED industry chain. From the experience halls of various brands at the exhibition, it can be seen that all kinds of lamps in the home field, chandeliers, lamps, spotlights, downlights, fluorescent lamps, even crystal light sources and reading light sources, LED products are all available, have been covered All home lighting sources.

Technology: LED technology breakthrough

LED concept can have a longer life, good anti-vibration performance, good for automotive use, LED low voltage, very safe under the water, LED energy saving, used in the long-term lighting but the contrast is obviously not very high color index requirements On occasions, they can all be competent. However, LED is not without its drawbacks. The problem of excessive light failure, low color rendering index and poor color tolerance has been a fatal injury to household lamps.

Judging from the new products introduced, these problems are being solved. Although they have not yet been verified by the market, there has been a great breakthrough in theoretical data. GE's energysmart LED A19 full-angle light bulb can truly replace the traditional 40W incandescent bulb. It has the same brightness as incandescent and Halogen Lamps and meets the US ENERGYSTAR standard. The 9W power alone provides the same lumen output as a traditional 40W incandescent lamp, saving 78% of energy consumption, longevity up to 25,000 hours, 3 hours per day, sustainable use over 22 years, Ordinary 40W incandescent or halogen lamp life 25 times, is 3 times the standard 8000 hours fluorescent lamp life, saves energy 34 kilowatts/hour every year. What is even more unique is its ultra-wide light angle of 270 degrees and the design of the protective heat sink, which allows the light to diverge around, closer to the lighting effect of the incandescent lamp, and greatly reduces the surface temperature of the lamp during lighting.

Panasonic introduced a dimmable LED ceiling lamp that can adjust the brightness of the Ceiling Light in response to changes in the external environment, creating a ambience that the user needs. Philips exhibited LEDSoft Glow soft bulbs for use in event areas such as living rooms, dining areas and TV rooms. This kind of light bulb can create a bright home environment in an instant, and can provide unique high-quality lighting, without glare when used, which makes people feel more comfortable.

ROHM's PSML series is a high-brightness, high-heat-dissipation white LED light source with the advantages of wide color gamut and high color rendering. Its LED downlight built-in ROM power supply module, the industry for the first time through the surface light to reduce glare and LED light spots. OSRAM's DurisE 3 satisfies all requirements for even lighting, with a color temperature of 3000K to 6500K. The T8 Duris ELED and T5 offer high luminous flux and are the best alternative to fluorescent tubes.

Evaluation: Market recognition needs to be improved

However, these improvements have not received market recognition. “If I buy a reading light for my son, I will not buy LED products.” Zhang Shanduan, deputy director of the Institute of Electric Light Sources at Fudan University, said that unless the products are from large companies and are internationally certified, many LEDs are currently emitting light. In principle, it is not suitable to make a desk lamp. "There are many blue light components in LED lamps and it is not good for eyesight."

In recent years, the Institute of Electric Light Sources of Fudan University has done a lot of tests on the domestic reading lamp market. In addition to the Blu-ray problem, Lin Yandan, associate professor of the Institute, said that the general problem of LED lamps in previous years was insufficient luminous flux, “that is, the light is dark. Another problem is the color rendering, the color will be distorted when looking under the LED table lamp, at the same time, only a small part can be seen, this is called the light distribution is not appropriate, in addition, its light point is bright, If you look at it directly, you will feel very dazzling.” Lin Yandan said that at present, there is not a complete national standard for LED table lamps. Therefore, apart from the products with particularly good quality, they cannot play a good role in eye protection.

There is also a problem of poor heat dissipation and rapid light decay that lead to a sharp drop in product life, which has been criticized by the industry. According to some shortcomings of LED light sources, the industry believes that it is not suitable to use LED lighting in reading rooms, libraries, and gymnasiums.

What is even more fatal is that the powerful manufacturers will focus on the light source and the chip part, and the whole lamp will be indispensable. "A lot of LED manufacturers are not complete lighting manufacturers. They have to use their own chips, or have to buy the cheapest chips for shallow processing." Bi Jianwen did not explain carefully, but the implication is obvious, the LED's entire light structure is still in a Brewing period. True lighting is not a problem with a light bulb, but it is a system engineering that incorporates optical design, and it is almost impossible to quickly spread it.

Industry: Home Lighting

Insufficient power Since March 2006, the domestic LED war has been burning. At that time, LED manufacturers predicted that LED would replace most of the household lighting in 2008 and reach a large number in 2010. For now, this prediction is too "naive." It is unpredictable that China's LED companies are a little bit "outside the force." At present, no data can clearly show how many LED lighting companies are in the domestic market. According to incomplete statistics in the industry, only the Pearl River Delta region has no less than 4,000, accounting for about 70% of the country. Although the variety covers home, business, electrician and other fields. However, most of them are concentrated in the middle and lower reaches of the industrial chain. There are only 62 companies that have LED chip production capabilities. Even if there are large-scale packaging companies, there are only a few hundred in the upper reaches of the industrial chain. The distribution of LED profits in the industry chain, LED epitaxial wafers and chips account for about 70%, LED packaging accounts for about 10% to 20%, LED applications probably also accounted for 10% to 20%. Wen Shangsheng, vice president of the Guangdong Provincial Lighting Association and professor at South China University of Technology, pointed out that according to the "Twelfth Five-Year Plan of Guangdong Province," emerging industries such as semiconductor lighting, energy saving and environmental protection are emerging industries with a strategy of cultivating and developing Guangdong. The development of LED lighting market is very fierce. It is estimated that the number of LED replacement incandescent fluorescent lamps will account for 50% in the next five years, and the data will increase to 80% in the next decade. However, at present, the domestic LED market is extremely confusing, the brand is vague, shoddy, and the concepts are vague.

"The biggest problem is still lack of motivation." Bi Jianwen did not deny the "utilitarian" LED companies, and now, there are not many companies that are truly profitable in the LED industry. Governments across China have indeed spared no effort in promoting the LED industry, which has led many LED companies to rely on government subsidies to complete the growth of profits. It is the government's vigorous promotion that has led to the current domestic applications are mostly government procurement, did not really enter the civil sector, so the market demand is very small. At this exhibition, reporters rarely heard which companies had plans to promote in the civilian market. Most of the announcements were made on how to enter government procurement or commercial use.