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How to choose energy-saving lamps for the home?
In order to save electricity with the help of energy-saving lamps, in 2009 the President of the Russian Federation signed the Federal Law on Energy Saving. According to which, from January 1, 2011, the sale of electric incandescent lamps with a power of 100 W or more is not allowed in the country; from January 1, 2013, an electric lamp with a power of 75 W or more, and from January 1, 2014, lamps with a power of 25 W or more.
Content
- Energy saving lamp energy saving
- Types of energy-saving lamps video
- Power Energy Saving LED Bulbs video
Energy saving lamp energy saving
With the help of energy-saving lamps, it is possible to save both electric energy (in comparison with standard incandescent lamps) up to 85%, and money in general. For example, by reducing the load on the electrical wiring (the lack of the possibility of unexpected fire or broken plugs).
The ability to save energy depends on a lamp indicator such as light output, or the ratio between light output and power consumption, which is 50-100Lm / W for energy-saving lamps, compared to 10-15Lm / W for conventional incandescent lamps. That is, it turns out that the luminous efficiency of energy-saving lamps is five times greater than that of conventional incandescent lamps, which means that when they are used, five times less electrical energy is consumed than ordinary incandescent lamps.
Agree that energy savings of five times is not a small indicator! Also in favor of energy-saving lamps is the labeling of their energy efficiency class. For example, energy-saving lamps have A and B, while incandescent lamps have E and F. As you can see, the energy efficiency class is an order of magnitude higher for energy-saving lamps. But what types of energy-saving lamps exist today?
Types of energy-saving lamps
Energy-saving lamps come in two types:
- fluorescent energy-saving lamps (gas discharge lamps);
- LED energy-saving lamps.
We already mentioned such an important factor when choosing energy-saving lamps for the home, then light output (the ratio between the light flux and the power consumption). So, in LED lamps, in relation to fluorescent, light output is greater.
If we talk about environmental friendliness, fluorescent energy-saving lamps are not competitors to LED energy-saving lamps for the home, because fluorescent lamps contain mercury, which, if the bulb is damaged, can pose a significant danger to the health of people living in the house. In LED lamps there is no mercury, they generally do not have any harmful components, therefore they are safe for home, in contrast to fluorescent energy-saving lamps, which, moreover, have become known for their flickering with a frequency harmful to human vision, from which, moreover, eyes quickly get tired. But LED lamps do not flicker, because their power is supplied by direct current, the emission spectrum is more natural and mechanical strength is higher due to the absence of a fragile glass bulb and tungsten filaments, they are much more durable (their service life is up to 100,000, and luminescent - 16,000 hours), and, unlike luminescent ones, they are not dependent on voltage drops and on frequent on-off lights.
In addition, LED lamps have the most natural color rendering of the light source, pleasant for the perception of human eyes. The spectrum of their radiation is the closest to the natural, in contrast to fluorescent energy-saving lamps.
It turns out that LED lamps win in every way. Compared with fluorescent energy-saving lamps, they lose only in price. But those who do not want to save on the health of their friends and relatives will undoubtedly choose LED lamps.
Power Energy Saving LED Bulbs
When choosing an LED lamp for the home, you must consider its power. If you replace obsolete incandescent bulbs with modern LED bulbs, then when calculating, take a factor of no more than eight. That is, in practice, this is the case: when replacing a 60 W incandescent lamp with an LED, you need to buy an LED lamp with a power of at least 7.5 watts. If the incandescent lamp that you plan to replace has a power of 100 W, then you will need a 12.5 W LED lamp.
When choosing a fluorescent energy-saving lamp in terms of power, it should be borne in mind that Watt is the power that the lamp consumes and it will depend on how much electricity this lamp consumes in lighting. And the unit of measurement of the light flux emitted by the light source (lamp) is Lumen. So, the brightness of the lighting in the room depends not so much on the Watt indicator, but on Lumen. Therefore, you should pay attention to this figure on the packaging of the lamp. For example, a lamp with a power of 25 W produces 210 lumens, 40 W already 500 lumens, 60 W - 850 lumens, 75 W - 1200 lumens, 100 W 1700, 150 W - up to 2800 lumens. As a rule, it is advised to buy with an energy-saving lamp, with an inscription on the label, in power 5 times less than the incandescent lamp that you replace. That is, if you change your incandescent lamp to an energy-saving one, then a lamp of 20 W will be equivalent to your 100 W lamp, if you change a 60 W incandescent lamp, then buy an energy-saving power of 12 W.
One feature of fluorescent lamps should be considered. Their luminous flux decreases in proportion to the service life by about a quarter of the original. And yet, if the level of illumination is important to you, then buy energy-saving lamps with more power than recommended by the manufacturers on the package.
