Analysis of the Reasons for the Great Disparity of Different Brand Products of LED Lights
During the summer season, household electricity consumption has soared, and it is easy to break through the critical point of the ladder price regulation. Coupled with the improvement of people's environmental awareness, many consumers have turned their attention to more energy-saving and environmentally friendly LED lights. At present, there are many LED lamps sold in the market, which are rich in variety and wide in use. However, the reporter's investigation found that the price difference between different brands of LED lights is very large, even reaching more than ten times. What is the difference between them? LED lamps are the most energy-saving and environmentally friendly. At present, domestic household lamps mainly include incandescent lamps, energy-saving lamps and LED lamps. Among them, consumers buy the most energy-saving lamps. This is because many households have realized that incandescent lamps consume a lot of power. , so replace it with energy saving lamps. LED lights are still relatively unfamiliar to many ordinary consumers, and they are not yet popular due to high prices. According to industry insiders, from the perspective of economy and environmental protection, LED lamps are the most energy-saving and environmentally friendly, followed by energy-saving lamps, and incandescent lamps are the most wasteful of energy. The reporter saw in a supermarket that the price difference between incandescent lamps, energy-saving lamps and LED lamps is large. For example, an incandescent lamp with a rated power of 40W is priced at 3 yuan, and one is equivalent to a 40W incandescent lamp. The price of energy-saving lamps with brightness and rated power of 8W is 24 yuan, and the price of an LED lamp equivalent to the brightness of 40W incandescent lamp and rated power of 5W is as high as 49.9 yuan. According to such a price, the reporter carefully calculated the account: If only from the price point of view, the amount of money spent on an LED lamp can be purchased for 2 energy-saving lamps or 16 incandescent lamps. Obviously, the cost of using LED lights is much higher than using energy-saving lamps and incandescent lamps. But from the point of view of the power consumption and service life of the bulb, the result is greatly different. Under normal circumstances, the service life of incandescent lamps, energy-saving lamps and LED lamps is about 1000 hours, 6000 hours, and 20,000 hours, respectively. In this way, the life of an LED lamp is equivalent to 20 incandescent lamps or 3 energy-saving lamps. Calculated with a brightness of 20,000 hours, equivalent to 40W, an incandescent lamp consumes 800 degrees of power, an energy-saving lamp is 160 degrees, and an LED lamp is only 100 degrees. According to the price of 0.48 yuan per kilowatt hour, the electricity cost for using 20,000 hours of incandescent lamps is 384 yuan, the energy-saving lamps are 76.8 yuan, and the LED lights are only 48 yuan. In addition to the purchase cost, if an incandescent lamp is used for 20,000 hours, it costs a total of 432 yuan, the energy-saving lamp costs 148.8 yuan, and the LED lamp only costs 97.9 yuan. It can be seen that from the perspective of long-term use, LED lamps are lighting products that are both cost-effective and environmentally friendly. In addition to the family, the energy-saving and emission-reduction effects of LED lights used by enterprises and institutions or large shopping and entertainment venues are more obvious. According to a test result of Beijing Wumei Group, if all its subordinate supermarkets use LED lights for lighting, they can save more than 30 million yuan in electricity every year. Calculated by using 0.404 kg of standard coal for one degree of electricity, Wumart supermarkets can reduce the use of 12,120 tons of standard coal per year after using LED lighting. The annual carbon emission is 0.997 kg, which is equivalent to reducing carbon emissions by about 30,000 per year. More tons. The difference in price difference between different brands of products Since the energy-saving effect of LED lights is so good, why has it not been popularized? The huge price difference between different brands of LED lights is an important reason that cannot be ignored, which makes consumers unable to start when purchasing. The reporter found that LED lights not only have a large difference in price from incandescent lamps and energy-saving lamps, but also LED lamps of the same power. The price of different brands can also be several times or even ten times different. When interviewed by a lighting city in Shilihe, Beijing, the reporter found that almost every merchant is selling LED lighting products of various brands, and the price difference of different brands is obvious. Take an LED spotlight with a rated power of 5W as an example. Its price ranges from 10 yuan to hundreds of yuan. Among them, the products with a price of between 10 yuan and 40 yuan are mostly produced by some unknown small manufacturers. The price of domestic famous brand LED spotlights is about 6070 yuan, and the LEDs produced by international famous brands such as Philips and Osram are produced. The price of each spotlight is more than one hundred yuan. When the reporter asked why the price of LED lamps of different brands is so different, many merchants answered that the quality is different. To further illustrate the problem, a store salesperson demonstrated a LED spotlight with a price of $15 and a price of $30. After powering the two lights at the same time, the salesperson pointed to one of the brighter LED lights and said to the reporter: You see, its light is obviously brighter than the other one, indicating that its quality is better than that. For the price of more than 70 yuan, the light will definitely be brighter than this 30 yuan. Subsequently, the reporter consulted another store with the same question, and the sales staff conducted the same experiment. After power-on, he pointed to a soft LED light and told reporters: This lamp is expensive, you see it is very soft, not glaring, and the light of another cheap LED light is too white, too bright. Long-term use is not good for your eyes. According to the salesperson, the light of the cheap LED light will be darker after half a year, and the lighting standard will not be met. According to a survey by the reporter, the price difference of LED lights sold in online stores is even larger. Some of the online stores sell LED lamps at a price of only 1.8 yuan each, which is lower than the price of an incandescent lamp. After careful inspection, the reporter found that these LED lights are mostly small brands, and the slogan of the merchants is low-cost and low-cost, only for sales. The LED lamps sold by international famous brands such as Philips and Osram on the website have a price of up to 80 yuan each, and the price difference between the two is more than 40 times. The low quality of low-priced products is also the LED light. What factors affect its price? In this regard, an industry insider explained to reporters that the factors affecting the price of LED lamps include chips, packaging, heat dissipation methods, heat dissipation materials, appearance and other aspects, and only the chips are divided into several levels. The industry further explained that an LED lamp usually consists of three parts, namely a lamp bead, a casing, and a driver. Take an LED spotlight with a rated power of 3W as an example. It consists of 3 lamp beads, 1 casing and 1 drive. It is calculated according to the production cost of the mid-range product. The cost of the lamp bead is 2 yuan and the outer casing is 3 yuan. The drive is 2.8 yuan, the labor cost is 1 yuan, the packaging cost is 0.5 yuan, and the other cost is 1 yuan. In this way, the total cost of this lamp is 10.3 yuan. In addition, the profit to be earned by the merchant, the rental cost of the warehouse, the transportation cost, etc., the price of this lamp must be at least 20 yuan. Therefore, the quality of LED lights that sell for only 10 yuan or less can be imagined. According to the industry insider, some merchants dare to sell very cheap LED lights because they use inferior materials, taking lamp beads as an example, a poor quality 1W domestic lamp beads sold in some southern markets. The price is only 0.2 yuan, the gold wire inside the lamp bead is replaced by copper wire, and other materials are mostly inferior products. For these, the consumer is only difficult to discern from the appearance of the lamp. Therefore, he reminded consumers not to buy LED lights that are too low in price to avoid problems during use and damage to themselves and their families.