It took more than a century for energy-saving lamps to replace incandescent lamps. It took only a decade for LED lights to reach the level of energy-saving lamps. Due to the shortcomings of energy-saving lamps, such as energy consumption and pollution, LED lights have become faster and faster.
Home lighting will bid farewell to the Edison era roadmap based on the elimination of incandescent lamps issued by the state. From October 1 this year, incandescent lamps for general lighting of 100 watts and above are prohibited from being sold and imported. Since September 1st, the incandescent light bulbs have been completely banned in the EU, and the traditional incandescent bulbs have completely withdrawn from the market. This means that China's home lighting will also officially bid farewell to the Edison era that has lasted for more than 100 years.
In 1879, Edison made a carbon fiber (ie carbon wire) incandescent lamp, marking the birth of incandescent lamps. For more than a century, after the continuous improvement of filament materials, filament structure and filling gas, the luminous efficiency of incandescent lamps has also increased accordingly, but other lighting technologies have also developed. After 1995, a three-color fluorescent lamp, commonly known as the energy-saving lamp, slowly became the main choice for home lighting. At present, 80% of Suzhou families have used energy-saving lighting.
Due to the different illumination principles, the service life of an incandescent lamp depends on the quality of the tungsten wire in the lamp, while the service life of the energy-saving lamp and the LED lamp depends on the quality of the ballast. In theory, the lifespan of various types of energy-saving lamps, LED lamps and incandescent lamps are almost the same, about 8,000 to 10,000 hours, and a ballast consists of twenty or thirty electronic components. As long as one of the qualities is lacking, the whole lamp will be broken. This is what we usually say about the life of a product is determined by the short board of the product. In theory, each electronic component has a certain number of switching times. Frequent switching will cause the electronic components to start and shut down continuously, which will shorten the use time. In addition, due to the electronic components and lamps of the energy-saving lamps The position of the two is very close. If it is turned on for a long time, the heating of the lamp will also affect the service life of the electronic components. Ye Feng, the deputy director and chief engineer of the Municipal Urban Lighting Management Office, introduced.
At present, the price of an energy-saving lamp is about 10 times that of an incandescent lamp. According to the test of the city's urban lighting management office, the energy-saving lamp is reduced by about 3 hours per switch. Therefore, do not switch the lamp frequently, otherwise it will easily cause the lamp to go out or even burst. In addition, if the lamps accumulate dust, the output efficiency will be lowered, the brightness will be darkened, and the service life will be shortened. If residents can keep the lamps clean and keep the output in an optimal state, it will not only prolong the service life of the lamps, but also achieve energy saving.
There are shortcomings in energy-saving lamps, which are gradually being replaced by the lighting fixtures on the Carrefour supermarket in Wanda Plaza. The reporter saw that the Philips brand spherical incandescent lamp with a price of 3.8 yuan and 40 watts has disappeared. The shelves are covered with energy-saving lamps and one. A new type of LED light is divided equally. The new LED lamp has a milky white shape, but the price is about 30 higher than the energy-saving lamp. The same 8 watt lamp, the price of LED lights is more than 40 yuan.
In the laboratory of Kunshan Heguang Lighting Technology Co., Ltd., there is such an 8 watt LED lamp, but the lamp is not spherical, but the shape of a third ring. Guan Jianming, the company's vice president of technology, told reporters that the lamp has been on for more than three years, the purpose is to test the life of the lamp. China is a big country in the production of energy-saving lamps. The world's 80 energy-saving lamps are produced in China. The production of energy-saving lamps is also a process of high pollution and high energy consumption. At the same time, energy-saving lamps also contain mercury, which is more likely to cause environmental pollution after being discarded. Therefore, many regions in foreign countries have restricted the development of this industry. In comparison, emerging lighting fixtures such as LED lamps are less polluting and more energy efficient, which is the goal and result of our lighting industry.
These potential shortcomings of energy-saving lamps have led the lighting industry to constantly look for alternatives. At present, semiconductor lighting represented by LED lamps is considered to solve the problem of mercury pollution in energy-saving lamps because it does not contain mercury and can save 80% of electricity. The service life is up to 8~10 years, which is the life of energy-saving lamps. Times around.
Guan Jianming said that the LED lamp single chip that is more common in the market is generally 1 watt to 3 watts, with high color saturation, flexible control, and concentrated use of light sources. Therefore, it can be well reflected when used for landscape lamp design. The landscape has the characteristics of bright and dark, local illumination, etc. The greater advantage is that the wattage is small and the power saving effect is more obvious. As technology improves, the power of LED lights increases. However, LED lamps are still defective, with a single spectrum and no three primary colors. And as the power increases, the heat dissipation problem becomes more prominent. LED lamps with a single chip of more than 10 watts are now rare or expensive. However, LED lights are still very advantageous if they are used as street lights in the dormitory area, in the corridors, in the night lights of the home.
Therefore, he suggested that if residents choose LED lights as room lighting, they can use multiple lamps at the same time, which is beautiful and energy-saving. The reporter also found in the lighting market that compared with the traditional chandeliers, although the LED lamps are mostly small in wattage, they are small in size and easy to conceal. The light source can be adjusted at will, so the various chandeliers using LED lamps are more novel. . After some beautiful chandeliers are lit, it is even hard to find the position of the bulb, making the chandelier look more like a purely luminous artwork.
LED street lights are about 55 times more energy-efficient than high-pressure sodium lamps. At the same time that LED lights quietly enter the homes of ordinary residents, the street lights and landscape lighting of Sioux City have gradually entered the LED era.
Before the 1950s, the street light source in Suzhou City was clearly colored as incandescent lamp; in 1963, Xuanmiaoguan installed the first batch of high-pressure mercury lamps in the city; in 1979, the first batch of high-pressure sodium lamps were installed on Guanqian Street.
At present, high-pressure sodium lamps are still the light source commonly used in road lighting in our city. It has the characteristics of high luminous efficiency, long life and energy saving. It is 2 to 2.5 times higher than high-pressure mercury and 7 times higher than ordinary incandescent lamps. By the end of 1998, there were 17,000 street lamps in Suzhou City with a total power of 1200 kW. Since 1999, as the municipal government's actual project, the road lighting and lighting project has been fully launched. After more than two years of hard work, more than 70 main and secondary roads and four commercial districts in the city have undergone comprehensive lighting renovation. In 2001, Suzhou City was eliminated. The incandescent lamp has achieved a comprehensive upgrade of the street lamp. According to the statistics of the Municipal Urban Lighting Management Office, by the end of 2011, the total number of street lamps in Suzhou City under its jurisdiction has exceeded 80,000.
On this basis, Suzhou street lamps continue to develop towards science, energy conservation and environmental protection. In January 2010, the City Urban Lighting Management Office first installed 80 LED street lights on Jiefang West Road. At the end of October this year, the 251-inch lantern-type street light on Shiquan Street was also completely replaced with LED light source. As early as these two projects, 80 of the city's more than 140,000 urban landscape lights have turned into LED lighting.
In the Jinmen Road warehouse of the Municipal Urban Lighting Management Office, a row of lantern-shaped street lamps removed from Shiquan Street is lying on the ground, waiting for overhaul and modification. This kind of palace lantern has a net weight of more than 30 kilograms. Since 2004, these antique lantern-type street lamps have been serving the public. It has been nearly 10 years since then, so there are also different degrees of pollution and damage, and the reflectors have begun. Aging, affecting the lighting effect.
The reporter saw that after the renovation and cleaning, the palace lanterns were completely new. The last process was to install a new type of LED light source. The LED light source used in the palace lamp is like a sunflower with a diameter of about 20 cm, and 35 light heads are neatly arranged.
The staff who are installing told the reporter that the lantern is the streetlight on the motorway of Shiquan Street. The total power is 45 watts. To achieve the same lighting effect, 100 watts of high-pressure sodium lamp should be used before, that is, to achieve the same Brightness, a LED street light can save about 55 energy than a high-pressure sodium lamp. Such an energy saving rate will undoubtedly save a large amount of energy expenditure for a city like Suzhou with a population of 10 million.
Car blanket is also called as auto blanket, as it is normally used for keeping warm in the car.
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Below image as a reference:
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