What are the advantages of an LED bulb compared to an incandescent or energy-saving lamp? It is estimated that many consumers will say energy saving and durability, but what is the energy saving effect? How durable is the LED light? This question may not be answered by every consumer.
With the ever-increasing demand for LED lamps and the continuous reduction in manufacturing costs, the price of LED lamps is also declining year by year. How should consumers choose LED lamps? What are some of the misunderstandings?
Cost reduced to $1.50 in 2015
With the continuous improvement of living standards and increasing attention to topics such as the energy environment, consumers are increasingly demanding energy-saving, environmentally friendly and healthy and comfortable living. In terms of lighting, the choice of greener, energy-saving and healthy lighting products has become the mainstream of society. LED has become an inevitable trend because of its excellent performance in terms of energy saving, environmental protection, efficiency and longevity. However, the higher price has undoubtedly become a roadblock for the popularity of LED bulbs. However, the production capacity of LED bulbs continues to increase, the demand continues to expand, and manufacturing costs continue to decline. Industry experts estimate that in 2015, LED bulb manufacturing costs will drop to around $1.50. .
According to Zhang Weichao, lighting product marketing manager of NXP Semiconductors (Shanghai) Co., Ltd., the world's most famous LED chip manufacturer, since LED bulbs are composed of chips, LED components, heat sinks and lampshades, manufacturing costs have remained high. The cost of LED components has previously accounted for more than 50% of the total. With the improvement of production efficiency, the cost ratio of the three major components of LED has dropped to 1:1:1. It is expected that the cost of LED products will be reduced to 2011 in 2015. 1/5. By then, the cost per LED bulb will be reduced to $1.50.
Good change energy-saving LED is concerned
According to the reporter's visit to the market, the current price of LED bulbs such as Philips and other first-line brands is about 90 yuan, and the price of third-line products can be as low as 40 yuan. However, compared with the energy-saving lamps sold at the first-line brands of more than ten yuan, the price of LED bulbs is still high. In the interview, some consumers said that they had long wanted to replace the LED bulbs for the whole family. If the price can be reduced to the current price level of energy-saving lamps, there is no room to consider.
In addition to energy saving and environmental protection, LED lights have many "special functions". Zhang Weichao said that LED can adjust color and brightness according to demand. For example, you can change the light of the bedroom with light yellow, sometimes green apple green, sometimes pink... This is undoubtedly the unmatched energy-saving lamp. In addition, due to the built-in control chip of the LED, the consumer can even realize the lighting operation of the wireless remote control home, and open the living room lamp before going home. You only need to send one command, and this life experience is not far away. Some people in the industry laughed that after the popularity of LED lights, it will give birth to a new career for designers of home lighting atmosphere.
LED lights purchase common sense and misunderstanding
1. Please list some misunderstandings that consumers will encounter when purchasing LED lights on a daily basis.
When buying lights in some lighting cities, some shopkeepers will tell consumers: "Buy this light, this light has 3 LEDs, there is only one, buy 3 more bright" "3 LEDs of course It’s more expensive than one.†But it’s not. Due to the different technologies used in LED chips, the luminous efficiency of individual LEDs is also very different. At present, LED chips in the mainstream market have many different forms such as high power, medium power, low power, and COB . For example, a single-lumen output of a medium-power LED is about 45 lm, and a single lumen with a high power can reach 120 lm or more, so it is very likely that the luminous effect of one LED is the same as that of three. In terms of cost, the price of a high-power chip is higher than that of a medium-power chip. Therefore, not necessarily three LEDs are necessarily more expensive than one. It is mainly determined by the performance of the selected parts.
2, please list some consumer misunderstandings about LED lights
Most ordinary consumers use the oldest method of purchasing 40 lights and 60 incandescent lamps when purchasing lamps. The brighter the lamp, the higher the wattage. Ask a simple question, a 7W LED, and an 8W LED. Which one do you think is brighter? The answer is: not necessarily.
In fact, the light and darkness of light is measured by a professional parameter called lumen (lm), which is the main criterion for measuring the brightness and darkness of a lamp. Comparing 7W or 8W LEDs, you should see their lumen output. Because the technology of LED and the technology of incandescent lamp are different, the technology of incandescent lamp has been fully mature and stable after hundreds of years of experience, and LED is constantly changing and can achieve different effects through different combinations. Therefore, it is very likely that the 7W lumen output is 8W higher, then the 7W lamp is actually more energy efficient than the 8W.
Of course, since most consumers are unfamiliar with the terminology of lm, some manufacturers will give a label similar to “40W incandescent replacement product†on the packaging to help consumers buy. To give a simple example, an ordinary 40W incandescent lamp has an initial luminous efficacy of about 380 lm, which gradually decreases with the extension of its service life. While LEDs are a replacement for incandescent lamps, the standard for measuring whether they can replace 40W incandescent lamps is whether they reach 350 lm or more. In the future, with the introduction of national standards, perhaps the packaging of LED bulbs will be marked with lumens instead of wattage.
3. Compared with traditional energy-saving lamps and incandescent lamps, LED has many advantages. Does the LED lamp also have some shortcomings, in addition to the current shortcomings?
Everyone knows that the light emitted by LEDs is heat-free. Therefore, no excess heat is generated for the object being illuminated and the indoor environment. But the LED itself is extremely afraid of heat. For every 10°C increase in operating temperature of electronic components, the lifetime is reduced by half. Therefore, for LED manufacturers, how to control heat dissipation within a reasonable cost range is also a major difficulty that manufacturers need to overcome.
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