Mr. Luo of Zhuhai made up his mind to be a fashionable “low-carbon person†and replaced the lights in the house with LEDs. He visited several lighting stores, and Mr. Luo, who had a little knowledge of LEDs, looked like a fog, and sold people like him. Still ignorant.
According to the investigation, the Yangcheng Evening News reporter has learned that LED production has now entered the Warring States era. China's LED production accounts for 70%-80% of the world's total. Only 20 large-scale production plants in the Pearl River Delta, and more than 1 billion investment. 8 homes. The LED market is cluttered because there is no national standard.
No test report, the buyer is confused
Zhuhai Qianshan is a distribution center for furniture lighting and decoration materials. The LED lamp brands are diverse, but there are basically no brands that are familiar to most non-professional consumers. The price is also very different, the same as a 3 watt spotlight cup, there are more than 20 yuan, there are more than 30 -40 yuan, expensive to sell more than 50 yuan. It is said that if you go to Zhongshan Guzhen to buy, there are also 20-30 yuan. Reasons for different prices There is only one explanation for the business: the brands are different.
Compared to an ordinary 6-element halogen spotlight and a 12-yuan 3-watt energy-saving lamp, the LED is obviously much more expensive. All lighting stores say that LEDs are energy-efficient and have a long life. They can be used for 50,000 hours, and 10 hours a day for 15 years. But the warranty period is only one year, or even six months. Since the LED has such a long life, why is it only guaranteed for one year? The answer is: "That's it."
A female salesperson in a lighting store said that because the current advantages of LED bulbs and energy-saving lamps are not too obvious, there are not many people to buy. The original halogen spotlights are too easy to break, so LED spotlights are particularly good at selling, and there are dozens of single businesses every day. Although every lighting store will turn on the lights for the guests to see, but because they are not at the same time, there is no instrument test, basically no difference. The LEDs of each brand are not different from the outside. More obvious is that the LED spotlight is not as bright as ordinary spotlights, and the illuminated surface is not as large as the ordinary spotlight. More than 50 yuan of lamps are more expensive than 20 yuan of lamps, twenty or thirty yuan, what is the value? No lighting store is clear, and no store can provide LED test reports. They said that the test reports are in the factory.
No national standards, it is difficult to judge good or bad
Insiders said that LEDs currently do not have national standards, and all companies produce according to their own standards. The quality supervision bureau's supervision of LEDs is based only on conventional application indicators, and it is impossible to judge which is better and which is worse.
Cheng Qingheng, an energy auditor of the Energy Monitoring Center of Guangdong Province and a reviewer of the Zhuhai Energy Conservation Association, told the Yangcheng Evening News reporter: "The energy saving effect of LED is obvious. If it is used as a decorative light, LED can save 60%-80% energy saving energy. Energy saving 40%-50%. But the LED light decay (light attenuation) is also obvious, some companies have solved this technical problem, some do not, the degree of light decay is difficult to detect. Buy LED must first look at the power indicator, Look at how much lumens it emits and see how long it will last."
Zhun, an LED production plant engineer in Zhuhai, told reporters that chips also play an important role in LED prices. The price of chips for the United States and Nissan is 1-2 times that of South Korea and Taiwan, but the quality is also high. A good chip can reach 90-120 lumens a watt; while the difference can only reach 60 lumens, the energy saving effect is very far, which is reflected in the price of LED. But a layman may not know these "insides" when he buys a lamp.
LEDs have so much knowledge that even the average consumer will fall into the trap even if they are very careful. If the family decoration is entrusted to the decoration team to buy the lamp, it will be kept in the dark.
Technology is developing fast, prices are flowing down
Why is the "national standard" not released in time and plays the role of "navigation light"? Cheng Qingheng explained: "LED technology is developing too fast, and it will change with each passing day. The 'national standard' will fall behind the technology, which is not conducive to LED. The development of technology has shackles and even stifles new technologies."
It is understood that before 2007, LED can not be regarded as "energy-saving lamps", more used in flashlights. In 2008, due to the advancement of chip technology, LED can reach 60-80 lumens per watt, and entered the energy-saving army. The production and use of LED immediately appeared a blowout. LEDs are rapidly used in streetlights, decorative lights, contour lights, and point lighting. Some counters selling high-end jewellery, watches, and jewellery replace the 35-watt halogen spotlight with a 3-watt LED (lifetime is only 500 hours). In addition to energy saving, the so-called "cold light source" of LEDs has the least damage to the product.
Cheng Qingheng said that LED is in the process of technological rise and may replace 90% of the light source in the near future. "In this case, the various technologies related to LEDs have been continuously broken, and the standards are not legal. Because of the full competition and the huge market, the price of LEDs has flown down. In 2008, 100-watt LEDs were 6000-7000. Yuan, it dropped to 2,000 yuan last year." Cheng Qingheng suggested that in the absence of national standards, some indicators are difficult to detect. It is best for laymen to buy LEDs to check the information first, look for big products, or have market in Europe, America and Japan. An export enterprise of goodwill.
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