An energy-saving light bulb can save nearly 150 yuan in electricity costs during the entire life of 8,000 hours. This little energy-saving account tells us that energy conservation and environmental protection can and should start from every household and start with the details of using energy-saving lamps.
Save electricity and save money?
China is the world's largest producer of energy-saving lamps, but most of its products are exported abroad. The data shows that the proportion of household energy-saving lamps in China is only about 20%, which is far lower than the international energy-saving lamp penetration rate.
In the long-term consumption survey, Shanghai Haojiajia Building Materials Horticultural Supermarket found that consumers believe that energy-saving lamps do not save money and are one of the main reasons for curbing purchase enthusiasm. Many consumers are not sure whether energy-saving lamps can really save electricity. It is even more difficult to say how much electricity can be saved. However, the fact that an ordinary incandescent lamp is less than 2 yuan and a 5 watt energy-saving lamp is It costs 20 yuan. Will the saved electricity bills be spent on the cost of buying a light bulb? This is a common concern for consumers.
Professionals say that although the energy-saving lamps are expensive, if the quality is over, the long-term calculation is still saving money. At present, the energy-saving light sources commonly used in households are double-ended straight tube fluorescent lamps (commonly known as fluorescent lamps) and compact fluorescent lamps, which have a lifespan of 8,000 to 10,000 hours, which is 8 to 10 times that of ordinary incandescent lamps. The price of a 40-watt incandescent lamp is about 1.5 yuan, and the price of an 8-watt high-quality energy-saving lamp with the same brightness is about 24 yuan. However, since the service life of high-quality energy-saving lamps is 8 times that of incandescent lamps, the purchase of an energy-saving lamp is equivalent to the purchase of 8 ç› ordinary incandescent lamps, so the difference in the price of the lamp is actually only 12 yuan.
Next, calculate the electricity bill. The electricity cost of an incandescent lamp for one hour is the same as that for an energy-saving lamp for five hours. The 40-watt incandescent lamp lights up for 600 hours (equivalent to the first half of the year), the electricity cost is 14.64 yuan, the 8-watt energy-saving lamp lights up 600 hours, the electricity cost is 2.93 yuan, and the energy-saving lamp is 11.71 yuan more than the incandescent lamp. This means that after the 8-watt energy-saving lamp is lit for more than 600 hours, the electricity cost saved is almost equivalent to 12 yuan spent. Energy-saving lamps can save nearly 150 yuan in electricity costs during the entire life of 8,000 hours. In this way, energy-saving lamps have indeed played a role in energy conservation.
In addition, experts recommend that when designing lighting, it is best to control them in groups. For example, there are 9 lamp holders on a lamp. It is best to divide into 3 groups of controls. Through the switch, you can choose to open 3 lights, 6 lights or 9 lights at a time. This will save power more effectively.
Of course, there are two places where energy-saving lamps should not be used: one is a desk lamp that needs dimming or other lamps that need dimming; the other is that the energy-saving lamp contains a ballast circuit, so it is best not to use the place where the light source is frequently switched. .
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