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Energy-saving lamps were first born in the Netherlands in the 1970s. Although after 30 years of development, many people still don't know how energy-saving lamps are energy-saving. In fact, it is very simple. The principle of energy-saving lamps is completely different from that of incandescent lamps. The working principle of incandescent lamps has not changed much since more than a hundred years ago. It relies on electric current to heat the filaments to an incandescent state. Due to the high temperature of the filament during operation, only 7% to 8% of the electrical energy is converted into visible light, and more than 90% of the electrical energy is converted into heat, which is wasted in the form of infrared radiation. The filament temperature is high and the evaporation is fast, so the life is shortened, about 1000 hours. According to experts' estimates, if we replace all incandescent lamps with us, we will save one year of power generation from the Three Gorges Power Station.
Specific to the family, if each family replaces 40 watt incandescent lamps in the home with 8 watt energy-saving lamps, according to the daily lighting for 4 hours, one lamp can save 3.84 degrees in one month and save 46 in one year. Around the degree, according to the current electricity price, you can save 24 yuan in electricity a year, the money for energy-saving lamps will basically come out, and each household has more than 40 watts of light?
If you want to ask what is the most precious in the 21st century? That is energy! How to ask 100 people, is the energy-saving product good? The answer is yes. If you ask the same 100 people, will you use energy-saving products? The answer is hard to say. Many people are too expensive or afraid of poor quality, so that there is a strange phenomenon: 90% of the world's energy-saving lamps are produced in China, and the proportion of energy-saving lamps in China is less than 20%.
Since the energy-saving lamps are so good, why are you still clamoring? According to the author's understanding in a lighting market, a lady went to the lighting counter on the first floor of the Central Shopping Mall and wanted to buy a 15-watt incandescent light bulb for the toilet for his son's new home. The salesperson enthusiastically recommended to her the same brand of energy-saving light bulb. Not only is the brightness the same as a 15 watt ordinary lamp, but the style is fashionable and the service life seems to be much longer. More importantly, the power is only 3 watts and the power consumption is 80%. However, after hesitating for a long time, the woman still picked up a 15-watt incandescent bulb, because the incandescent lamp only costs 3 yuan, while the energy-saving lamp costs 22 yuan. Because she felt that the quality of energy-saving lamps is not at ease, the money for recovering energy-saving lamps is still "I don't know the Year of the Monkey"!
From this point of view, the current promotion of energy-saving lamps is slow, the most direct reason is that the price is high. In the case of the same electric energy, the brightness of the energy-saving lamp is about 4 to 5 times that of the incandescent lamp, but the price is often several times or even several times that of the incandescent lamp. The author saw in this shop that the price of 11 watt energy-saving lamps like Philips reached 32 yuan, the price of 13 watt energy-saving lamps of TCL was 23 yuan, and the energy-saving lamp 3W of Foshan also sold about 18 yuan, while the incandescent lamp was rounded. No matter the wattage is 2.5 yuan, the price difference is really very large.
According to the survey, another important reason why energy-saving lamps cannot be popularized is that consumers do not know much about the performance of energy-saving lamps and cannot make them the most effective.
According to reports, ordinary consumers do not know the technical terminology of light decay, illumination, lumens, color temperature, etc. In many cases, as long as the price is acceptable, the lamp will light up after power-on. In fact, under normal circumstances, after the energy-saving lamp is used for a period of time, as the phosphor is lost, the darker it will be used, which is technically called light decay. Light decay is one of the important criteria for measuring the quality of energy-saving lamps. High quality can ensure the most accurate light decay during use. Therefore, check the quality of energy-saving lamps, not only when they are energized, You also need to know the useful life of the label.
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