The energy-saving competition of neighborhood committees ended with everyone's attention. Grandma Wang lost to Aunt Lin in Building 3 by a narrow margin in the voting. Grandma Wang was a little unconvinced and took advantage of the weekend to go to Linda's family to "learn from the scriptures."
Well, when she saw the lamp in Mrs. Lin's house, Grandma Wang remembered, "Mrs. Lin, it's so bright here. Is it very expensive? This is not a good waste. " "You ah, please sit down! Come on, eat a fruit first. I have put a lot of thought into these lamps. " Aunt ha smiled and knew that grandma Wang didn't agree. She deliberately sold a small imprison.
"I don't believe it. This lamp is different from ours. Its wattage is not small, is it? You, an energy-saving pacesetter, can't waste electricity. " Grandma Wang is really picky. Mrs. Lin took her time and carefully introduced the "secret" on this lamp to Grandma Wang.
1, types of energy-saving lamps
(1) metal halide lamp
Metal halide lamp is a new type of light source, with color rendering index above 80, luminous efficiency above 75 lumens/watt and color temperature of 6000K K K. Its advantages are long service life, high luminous efficiency, good color rendering and obvious power saving effect. It is the fourth generation light source in the world today.
(2) The luminous efficiency of high-pressure sodium lamp is 90~ 100 lumen/watt, which is 2 times and 7 times that of mercury lamp and incandescent lamp respectively. The color rendering index is 60, the ultraviolet component is less, insects are not attracted, the illuminated object does not fade, and the color temperature is only 2 100K K.
(3) The luminous efficiency of self-ballasted fluorescent lamp is over 60 lumens/watt, which is four times that of ordinary incandescent lamp, and its service life is over 8,000 hours.
(4) Compared with double-ended fluorescent lamp (large diameter), double-ended fluorescent lamp (small diameter) has a life span of 20%, a light efficiency of 22%, energy saving of 10%, and a life span of over 10000 hours.
(5) Compared with inductive ballasts, electronic ballasts with 40 watts and 20 watts can save 5 watts and 3 watts respectively. A 20-watt household electronic ballast can save 20 kWh per year, and a 40-watt electronic ballast can save 60 degrees per year. In addition, when the external voltage drops to 65,438+030 volts, it can also be started.
Knowledge link
How to judge the color rendering index of energy-saving lamps
We can light the lamp and shine it on our palms. The palm looks ruddy and bloody, indicating that this product has a high color rendering index. Similarly, if the palm looks blue and bloodless, the color rendering index is low.
We can also use a colored object in different light to compare your feelings about color, and then use your feelings about the color of the same object in the sun to judge the color rendering index of a light.
2. How to distinguish the effect of energy-saving lamps?
Judge whether an energy-saving lamp saves energy and whether the energy-saving effect is obvious. In the absence of instruments, we can only feel whether it is bright with the naked eye. If there is a comparison, so much the better. You can turn on the energy-saving lamps with the same power and see if there is a how bright (of course, you think one of them is of better quality and may be expensive, while the other is of lower brightness and cheaper price). Good energy-saving lamps have high brightness, and even you will feel dazzled. Poor energy-saving lamps are like candles or T 12 fluorescent tubes.
3. How to choose high-quality energy-saving lamps?
Electric light is an essential thing for every family, but many people pay more attention to the appearance of lamps and bulbs, but ignore their performance. The right choice not only makes your life more comfortable, but also saves electricity.
(1) Pay attention to the operating voltage marked on the lamp. If you use low-voltage energy-saving lamps under high-voltage power supply, you will burn out the lamps;
(2) Pay attention to the use of qualified brands. Users should use qualified brands published by the State Bureau of Quality and Technical Supervision, and do not use inferior products;
(3) Select the power of energy-saving lamps. The light efficiency of self-ballasted fluorescent lamps is generally four times higher than that of incandescent lamps. Originally, if you used a 60-watt incandescent lamp at home, now 16 watt self-ballasted fluorescent lamp is enough;
(4) It depends on whether there is a national inspection report.
(5) It depends on the outer packaging of the product, including the trademark, power and labeling content of the product. Wipe with a soft wet cloth, and the sign should be clear and legible;
(6) It depends on whether the self-ballasted fluorescent lamp with qualified service life must reach more than 8000 hours in normal use. If you can't meet the standard, it is inferior;
(7) It depends on the safety requirements. Whether the lamp holder is loose, faulty and insulated during installation and disassembly;
(8) It depends on the material of the lamp, whether the appearance material is heat-resistant and fireproof, and whether the fluorescent powder in the lamp is uniform. If it is not used, the two ends of the lamp tube will turn black, which is an unqualified product;
(9) It depends on the price. Generally speaking, the cost is relatively high due to special reasons in the manufacturing process of energy-saving lamps. If it is a self-ballasted fluorescent lamp with seven or eight dollars, it is likely to be inferior products produced by some small factories. Generally speaking, the price of self-ballasted fluorescent lamps from well-known domestic manufacturers is more than 20 to 30 yuan, and the imported price is higher.
4, home lighting power saving tips
(1) Try to choose efficient lighting lamps.
On the premise of ensuring effective lighting and brightness, choose electric light sources and lamps reasonably. Self-ballasted fluorescent lamps can be used instead of incandescent lamps, and small-diameter double-ended fluorescent lamps can also be used instead of large-diameter double-ended fluorescent lamps. For example, a 5 watt self-ballasted fluorescent lamp is equivalent to a 20 watt incandescent lamp, and a 16 watt self-ballasted fluorescent lamp can be equivalent to a 60 watt incandescent lamp.
(2) The installation height of lamps and lanterns should be appropriate.
For example, if a 20-watt fluorescent lamp is installed one meter high, the illumination is 60 lumens; 0.8 meters high is 93.75 lumens; If the height is reduced properly, the wattage of the lamp can be reduced.
(3) Make full use of reflection and reflection.
If the lamp is equipped with a suitable reflector, the illumination can be improved, and the illumination can be improved by about 20% by using the reflection of indoor walls.
(4) Install dimming and power saving device
If incandescent lamps are used for bedside lamps and ceiling lamps in the living room, dimming and power-saving devices should be installed.
(5) Avoid using ever-burning lamps.
Acousto-optic delay switch should be used for lighting stairs and corridors, or turn off the lights in time after people leave.
(6) When watching TV programs, only turn on the required electric lights.
It can not only save electricity, but also protect eyesight.
(7) Electronic ballast and energy-saving inductive ballast shall be used for double-ended lighting.
The power consumption of electronic ballast is only 4 watts, while that of traditional inductive ballast is 9 watts.
Verb (abbreviation for verb) TV set
"Tintin, it's so late. Stop watching TV and go to bed early. " Sun Mei looked at Tintin still sitting in front of the TV watching series, a little angry, picked up the remote control and pressed the standby button.
Tintin walked to the front of the TV, a little unhappy: "Our teacher said that just pressing standby would waste electricity, and we must turn off the switch at night!" " "
"I know a lot. Come, go to bed early after washing. " Sun Mei took tintin, but secretly wrote down this trick in his mind.
Television is a household appliance that every household has, and the annual power consumption is also considerable. Knowing some common sense can effectively save electricity.
First of all, the power consumption of TV is related to the volume, so we should pay special attention when using TV. Generally speaking, the sound of TV should be adjusted to an appropriate level, so as to save electricity and not interfere with neighbors.
Secondly, the brightness of TV is also related to energy consumption. The energy consumption difference between the brightest and darkest color TV sets is 30 watts to 50 watts. You can turn on the low wattage fluorescent lamp indoors and turn down the brightness of the TV, which saves electricity and does not tire your eyes. Watching TV during the day and closing the curtains can reduce the brightness of TV accordingly. In addition, adding a dust cover can prevent the TV from inhaling dust. If there is too much dust, it may leak electricity, increase power consumption and affect the quality of images and sounds.
Finally, turn off the power immediately after watching TV, instead of putting it on standby. Without unplugging the power plug, it will consume electricity, because the power consumption of TV set in standby state is generally about 10% of its starting power. For example, if a 2 1 inch color TV set stands by for 16~24 hours every day, it will consume 4.23 kwh a month, and it can save about 2. 1 yuan if unplugged.
Knowledge link
Cut off the power supply: Many people will use the remote control to turn it off or turn it off regularly when using household appliances. At this point, the circuit will continue to be energized. Don't underestimate this casual standby energy consumption, which accounts for about 10% of household electricity consumption. Therefore, please cut off the power supply when you are not using electrical appliances.
Sixth, home computers.
By the end of the year, Zhang Qiang bought a computer with the year-end bonus, thinking that he could take home the unfinished work in the unit and charge it online at ordinary times.
These days, the whole family is talking about computers. Grandma Wang thought that she was already a "temporary" energy-saving propagandist of the neighborhood Committee, so she inserted: "Is this computer like a TV? It is estimated that it will cost a lot of electricity. We must consider how to save some money. "
"Yes, our company has similar energy-saving requirements. Look, I have another one in my bag. " Zhang Qiang took out a piece of paper from his briefcase.
1. computer energy saving tips
The maximum power of most home computers, including mainframes and color monitors, is generally around 150W. If you want to save electricity, you can start from the following aspects:
(1) Adjust the running speed according to the specific working conditions. Newer computers have the function of green power saving. You can set the sleep wait time (usually between 15 and 30 minutes). In this way, when the computer does not receive the input signal from the keyboard or mouse within the waiting time, it will enter the "sleep" state and automatically slow down the running speed of the machine until it is "awakened" by the external signal (when playing VCD).
(2) If you only listen to music, you can turn the brightness of the display to the darkest or simply turn it off. The printer should be turned on when in use and turned off in time after use.
(3) Try to use the hard disk. On the one hand, the hard disk is fast and not easy to wear. On the other hand, the hard disk keeps spinning at high speed after it is turned on, and the energy consumed when it is not used is the same.
(4) Maintain the machine regularly, and pay attention to excessive dust accumulation on the moistureproof and dustproof machine, which will affect heat dissipation, and dust accumulation on the display screen will affect brightness. Keeping the environment clean, cleaning the dust in the machine regularly and wiping the screen can save electricity and prolong the service life of the computer.
2, notebook battery power saving tips
How to prolong the battery life as much as possible is a problem that many notebook computer users are very concerned about. Use some skills and use