Energy saving is a large-scale task for which the latest technologies are applied. Increasing electricity consumption is forcing users to use energy-saving lamps - innovative lighting technology has increased efficiency with reduced energy consumption.
The market offers a wide range of “housekeepers,” but it's easy to get confused in such a variety, agree? We will help you make the right choice.
The article provides a detailed overview of three types of lamps with a description of their characteristics and application features, the parameters that must be taken into account when choosing energy-saving lamps are indicated.
Energy Efficiency Classification
Determining the economic effect is possible by comparing two samples. Incandescent lamps, the most inefficient of modern light sources, were chosen as an object of analogy. That is what served as the basis for the promotion of the advertising slogan “energy-saving light bulbs”.
Electric lamps with high light output and low power consumption are divided into three main types: LED, fluorescent and halogen.
At the same time, each category differs not only in structural features, but also in the quality of economy:
- luminescent able to save up to 80% of electricity;
- LED – 80-90%;
- halogen – 30-50%.
Economic indicators in them are achieved due to high efficiency. Most of their power is aimed at reproducing the light flux, and heat transfer and other costly processes are minimized.
Using energy-efficient light sources, electricity is saved not only within the budget of one family, but also on a more global - global scale (+)
Nevertheless, luminescent lighting technology managed to gain the most popularity, which was used not only in everyday life, but also in various areas of life: offices, warehouses, etc. However, the cost of their disposal makes entrepreneurs introduce a newer form - LED analogues.
Fluorescent Discharge Lamps
Fluorescent lamps used in everyday life are called compact (CFL). As a rule, they are made in the form of an arcuate spiral and are traditionally equipped with a screw base. They can be screwed into a standard cartridge, instead of an uneconomical analogue.
The main structural elements of compact fluorescent lamps:
- gas discharge flask;
- choke;
- diode bridge;
- fuse;
- filter capacitor.
The glass flask is filled with an inert gas (argon or neon), mixed with mercury vapor. Mercury pressure is subordinate to the temperature indices of the CFL walls and at a standard operating temperature of 40 ° C will be in the range 0.13-1.3 N / m2.
Inside the lamp is covered with a layer of phosphor, which includes calcium halophosphate or antimony with manganese. By changing the ratio of the so-called light activators, manufacturers were able to achieve various color parameters of the glow.
Here are located tungsten spiral electrodes connected via a ballast to the power supply. To increase the emission, the contacts are treated with an oxide composition.
A gas-discharge device has many advantages compared to incandescent lamps: the service life exceeds 5-20 times and amounts to 6000-15000 hours; up to 75% less electricity consumption; similar light intensity (+)
The technology used to reproduce light in them is significantly different from other analogues. Under the influence of an electric field applied to the contacts, the lamp produces a gas discharge.
It pierces the inert atmosphere of the flask, resulting in the formation of ultraviolet radiation. However, this spectrum is invisible to humans, so the phosphor further absorbs it, converting it into a standard visible glow.
The widespread adoption of CFLs has virtually replaced conventional incandescent lamps. Compared to linear samples, their design is more compact, while the area covered by the light flux is similar to (+)
Gas-discharge devices are presented both in open form and complete with a diffuser.
They are available with socles of various modifications:
- E27 - standard socket;
- E14 - type minion;
- E40 - for a large seat;
- G23, 2G7, G53, 2D - decorative appearance of devices: spotlights, lights, etc.
Depending on the quality of the constituent elements, the uptime guaranteed by the manufacturer varies from 3,000 to 15,000 hours.
Installation is greatly simplified by placing all the elements in one inseparable housing, including a ballast.
CFL has a diverse hue range from warm white to green. Replacing such a lamp is carried out in the same way as a conventional incandescent sample due to a standardized base
If we compare the luminescent with an incandescent lamp, it can be noted that the positive characteristics of the first substantially prevail:
- durability - due to the use of electronic ballasts, which are resistant to voltage drops, the life of the device increases significantly to 20,000 hours;
- heat transfer coefficient reducedtherefore they are allowed to be mounted in any types of fixtures without risk of an overheat;
- color temperature spectrum variabilitythat are successfully used in the design of the room.
Since the device uses standardized elements, provided that the gas cylinder is kept tight, it is possible to replace failed parts.
If we compare the characteristics of an energy-saving luminescent device and incandescent lamps, there is a significant difference in the degree of incandescence: the first copy is very hot during operation and has a very fragile glass case, the second one has average (+)
Thanks to leading developments, ELL shortcomings are trying to minimize, but at the moment they are still present:
- LL service life is limited.
- The use of mercury vapors, which are harmful not only to humans, but also to the environment, if the flask depressurizes.
- In connection with the presence of the previous paragraph, it is required to take measures for the disposal of products. For large enterprises - this is an additional expense item.
- The fragility of the glass body.
Uncontrolled deliveries of low-quality products to the markets and the mass distribution of such products entails a loss of customer confidence. More than half of the bulbs of base Chinese production do not comply with GOST.
Features of halogen lamps
This is an improved version of standard incandescent lamps containing halogen pairs in its design. The glow body in these products is made of tungsten filaments located as close as possible to the cartridge of the device. To give them spiral shapes, they are twisted and fixed by means of electrodes and holders.
The halogen type refers to the energy-saving category conditionally, because their service life is only 2-3 times longer than conventional vacuum ones. It averages 4,000 hours. The mechanism of burnout of the body is identical in both representatives. The color temperature in halogen bulbs corresponds to the actual temperature of the glow body - 3000-3200K
The algorithm of the device’s operation is as follows: tungsten atoms leave the red-hot wire and collide with halogen vapors in a flask and connect with them. But high temperature gives no other way for the development of the chemical process, except for the decomposition of the compound - the tungsten atoms again return to the wire spiral.
To date, methylene bromide or methyl are used as the halogen composition. However, work continues on the selection of effective volatile halogen compounds. Since all the elements are enclosed in a quartz flask, ultraviolet rays can pass through such a material, therefore measures are taken to block them.
In network products, the lamp is additionally placed in a shell of glass. Partial filtering of harmful radiation is achieved by applying a special composition to the flask. These lamps are marked UV Stop or UV block.
In cheaper models, where such measures are insufficient. The packaging of such products indicates that the devices must be installed exclusively in luminaires with protective glass
The service life of such bulbs is determined by the moment of depletion of the tungsten filaments. Thanks to the use of the halogen cycle, manufacturers achieve an increase in light output while maintaining an identical service life, as in incandescent lamps - 1000 hours.
Or they extend the operational period to 4000-5000 hours with the same light parameters.
The operation of such lamps is designed for low mains voltage - 6, 12 or 24 V, so they are used only in conjunction with a transformer for halogen lamps.
Low-voltage lamps with a reflector provide ample opportunities, expanding the scope of their application. Due to equipping with an interference reflective element that filters infrared rays, more than 60% of the heat is removed back through the reflector
The most powerful example is a metal halide directional light. This lighting option is suitable for rooms where objects with increased sensitivity to heat are located, because of which they deteriorate or collapse.
In most cases, they are used to illuminate shop windows. The intense white color of the glow with a color temperature of 3200 K successfully emphasizes the brilliant elements and color variety of the highlighted products.
HALO STAR STANDARD tungsten-halogen capsule models have standard features. The HALOSTAR STARLITE series has an extended service life of up to 3,000 hours. The HALOSTAR UV-STOP 24V glass models are equipped with an ultraviolet absorber. HALOSTAR IRC - provides 30% more light
The most compact design for capsule models. The process of their manufacture is based on the low-pressure technique, so they can be used in open luminaires. Only two modifications are available - with longitudinal or transverse placement of tungsten filament.
The main advantage over all glass analogues is the use of a quartz flask. The design is characterized by increased strength to mechanical stress and a high degree of heat resistance.
Thanks to this, it is possible to fill the lamp with xenon under high pressure, which ensures high brightness and light output.
Due to its positive properties, halogen light has an effective color rendering. The shadow from surrounding objects does not have sharp angles; rather, on the contrary, outlines with smooth lines
Additionally, we note such advantages:
- time stable light flow;
- compact sizes;
- operate without a transformer, with the exception of low voltage, in networks with a high voltage of 220-240 V;
- wide angle of light scattering, without sharp restrictions into a narrow beam;
- throughout the entire service life, the brightness is not lost;
- it is possible to adjust the light intensity;
- high level of safety - low-voltage models can be used in rooms with high humidity and in fixtures without a protective glass.
In addition to the positive aspects, halogens also have negative characteristics, which include excessive heating of the flask. In some models, the temperature reaches 500 ° C. For this reason, the installation of lighting should be carried out with a certain distance from objects - other light sources and the ceiling.
As well as halogen products, susceptibility to voltage drops is characteristic, which is a significant minus.
The linear type models deserved the most complaints: they cannot be operated for a long time in a vertical or inclined position. As a result, halogen substances and gas are separated and the device ceases to function.
Quartz halogen models are operated exclusively on a horizontal plane, with a deviation of not more than four units from the horizon. If this condition is not met, the device will quickly fail. They are available exclusively in compact format.
Separately, it is worth noting that you can not touch the lamp with your hands, because spots remain on it. They screw it in, having previously wrapped it in a piece of rags, or put on gloves.
Additional information on choosing a halogen lamp is provided in this article.
LED lamps
Due to the low energy consumption, LED crystals were initially used exclusively to indicate various processes in electronic devices. But over time, they began to improve, using super-bright LED elements, allowing them to be used in lighting circuits in almost all areas of activity.
The device of such light sources consists of several elements - a driver, LEDs and a Getinax strip. Details are enclosed in a housing shaped like: corn, an elongated bulb, or a spot type.
All of them are made of polycarbonate. This design eliminated the main problem - the likelihood of mechanical damage.
Due to the fact that the device already has ballast, the lamp is connected directly to the power supply without ballasts.
The power indicators of LED lamps are proportional to the number of crystals - the more there are, the higher the light flow
The narrow focus of the diodes allows you to combine them into small or large groups.
Depending on the intended installation location, the lamps are divided into:
- automobile;
- industrial;
- phytolamps for plants (presented in a linear type);
- street floodlights;
- household and office.
Linear devices are used in various conditions. For illumination in landscape design, it is advisable to choose devices with a high degree of protection - IP65, IP67.
They can be either tubular or more powerful, represented by searchlights. Suitable for rooms with a standard climate - IP20.
In LED devices, it was possible to achieve proportional scattering of the light flux. This property is maintained for the entire period of operation. Lamps practically do not emit heat, therefore they do not heat up (+)
The overview form factor has the greatest number of positive characteristics compared to all the sources described above:
- 220 V mains supply without ballasts;
- the lowest energy consumption of all presented species;
- does not require special disposal methods;
- does not radiate heat;
- scattering angle reaches 230 degrees;
- lack of a pulsating effect;
- high degree of light transmission up to 120 lm / W;
- service life of 50,000-100,000 hours;
- unbreakable case material;
- resistance to temperature extremes and other negative factors.
The only drawback of this modification is the high price category. However, with a greater degree of probability, future developments will help to neutralize this minus.
On our website there is a series of articles devoted to the selection of LED lamps, we recommend that you read:
- LED lamps for the home: which diode bulbs are better, LED lamp manufacturers overview
- Characteristics of LED lamps: color temperature, power, light and others
- Dimmable LED bulbs: selection tips, an overview of the best manufacturers
Rules for choosing energy-saving lamps
Incandescent bulbs have been in use for such a long time that when choosing an economical replacement, we focus solely on the power indicator. For a better understanding, many manufacturers directly on the packaging indicate the equivalent power compared to the luminous flux of a conventional vacuum lamp.
For clarity, it is worth noting that power and light flow are different indicators. The first value is measured in watts, the second in lumens. For example, a 40 W incandescent light emits light at 470-500 lumens, 60 W - 700-850 lumens, 75 W - 900-1200 lumens.
Choosing the necessary brightness EL can be repelled from the power factor. In luminescent it is equal to 5. If a bulb with a power of 12 V - this means that its luminescent analogue is equivalent to 60 watts. For LED - 7-8 (+)
It is the ratio of these two factors - power and light flow - that allows us to judge the economical performance of the device. The total value is measured in lm / W.
Here is another example: standard lighting technology for 1 W of consumed electricity gives 10-15 lm of light. Halogen - 15-20 lm / W, luminescent - 40-80 lm / W and LED leaders - 60-90 lm / W.
However, this is not the only aspect requiring attention.
It is important to pay attention to the following characteristics:
- Colour temperature. If you take lamps of identical power, but of different modifications, the color of their radiation can be different. This value is measured in kelvins. The choice of color temperature can be made in the range of 2700-6500 K. The lower the value, the warmer (yellow) the light.
- Color rendering index. An indicator of correct color rendering is sunlight - CRI = 100. Artificial lighting has not yet reached such parameters. Here it is necessary to build on the optimal CRI = 80 or more.
- Service life. Manufacturers indicate this value in hours. However, such marking is not convenient for everyone. Imagine it in years: halogen - 2 years, luminescent - 5 years, LED - up to 12 years.
- Cartridge type. The shape of the lamp base is selected for a specific model of the lamp. The standard version of an incandescent lamp is E27.
When choosing the shape of the flask, the exclusively aesthetic side plays a role here. However, it is worth considering that an oversized lamp may not fit in the glass frame of the lamp.
To implement the brightness control of an energy-saving lamp is quite an expensive pleasure, and the obvious difference between working with a dimmer and without it will be little noticeable
To meet all expectations, it is worth paying attention to manufacturers whose products have already managed to positively establish themselves: Philips, OSRAM, GE, Ecola. These companies offer a warranty period of 2-3 years for their products.
The video shows which light sources are the most economical:
Review and testing of Feron LED lamps:
Despite the fact that you can still find incandescent lamps in the markets, energy-efficient analogues will soon completely displace them from the shelves. If you replace them with all the appliances in the fixtures, after two years the money spent will fully pay off. What follows is full savings.
Share your experience with energy-saving lamps with your readers. Tell us which fixtures you chose, are you satisfied with the purchase. Please leave comments on the article, ask questions and participate in discussions. The contact form is located below.