Types of lighting sources and their advantages and disadvantages
Lamps are an indispensable object of modern home lighting. Generally, different light sources can create different atmospheres. There are many types of home lighting sources on the market, and different types of lighting sources have different advantages and disadvantages. In the end, the types of lighting sources and the What are the advantages and disadvantages? What are the precautions for purchasing home lighting fixtures? Let's follow the editor of BENWEI LIGHTING to find out.
Home lighting
Types of lighting sources and their advantages and disadvantages:
1. Incandescent lamp:
The biggest disadvantage of incandescent lamps is their short life span. The use time is generally between 3000 and 4000 hours. Some low-quality incandescent lamps can only be used for 1500 hours. In the home, incandescent lamps are often used in restaurants, bedrooms and other spaces, and they look more comfortable in color. .
Advantages: small light source, with a wide variety of lampshade forms; large versatility, many color varieties, with directional, scattering, diffuse and other forms; can be used to enhance the three-dimensional sense of objects, and the color light of incandescent lamps is closest to sunlight color.
Disadvantages: It is not environmentally friendly. When using incandescent lamps, 95% of the electric energy is consumed for heating, and only 5% of the electric energy is really converted into visible light; the heating temperature is high, the heat evaporates quickly, and the life is short (1000 Hours), high infrared components, easily affected by vibration, low color temperature, yellowish.
Scope of application: household dining room, bedroom.
2. Tungsten halogen lamp:
The metal halide lamp is actually a kind of incandescent lamp. The life span is generally between 3000 and 4000 hours, not more than 6000 hours. This kind of lamp can be used for accent lighting, such as to highlight the decorative paintings on the wall, indoor ornaments, etc. Use cold light lamp cup to illuminate, the white light of the lamp can be changed according to different home decoration styles, keeping in line with fashion.
Advantages: simple, low cost, easy to adjust and control brightness, good color rendering.
Disadvantages: short service life, low luminous efficiency, the filament is prone to fuse under high temperature for a long time, and the failure rate is high.
Scope of application: car headlights and rear lights, and homes, offices, office buildings, etc.
3. Fluorescent lamp:
Advantages: energy saving, about 60% of the electric energy consumed by fluorescent lamps can be converted into ultraviolet light, and other energy can be converted into heat energy. Generally, the efficiency of converting ultraviolet light into visible light is about 40%, so the efficiency of fluorescent lamps is about 60%×40% =24%-approximately twice the power of tungsten filament lamps with the same power.
Disadvantages: light decay occurs, and the color rendering of fluorescent lamps is not as good as that of incandescent lamps; the light flickers, which has a certain impact on eyesight; in addition, mercury pollution during the production process and after use and disposal, causing environmental pollution.
Scope of application: indoor public spaces such as factories, offices, schools, supermarkets, hospitals, warehouses, etc.
4. Energy-saving lamps:
Energy-saving lamps are popular for energy saving. A 9-watt energy-saving lamp is equivalent to a 40-watt incandescent lamp. The life of the energy-saving lamp is also relatively long, usually 8000 to 10000 hours. After a period of normal use of the energy-saving lamp, the lamp will dim , Mainly because of the loss of phosphors, which is technically called light decay. Some high-quality energy-saving lamps have invented constant-brightness technology, which can keep the lamp in the best working condition for a long time. After 2000 hours of use, the luminous decay is less than 10% .
Advantages: high luminous efficiency, more than 5 times that of ordinary incandescent lamps, and obvious energy-saving effect; long life span, about 8 times that of ordinary bulbs; small size and easy to use.
Disadvantages: light decay; low color rendering, incandescent lamps and halogen lamps with a color rendering of 100, perfect performance; energy-saving lamps mostly between 80 and 90 color rendering, low color rendering light sources not only look at the color not beautiful , But also harmful to health and eyesight.
Scope of application: traffic lighting, indoor lighting, landscape lighting.
5. LED lights:
The scientific name of this kind of lamp is light-emitting diode, which belongs to a new technology. The white LED lamp on the market now has better performance, but the current LED lamp still needs to be improved technically.
Advantages: LED lights have many advantages such as small size, low power consumption, long life, non-toxic and environmental protection, etc., originally used for outdoor decoration, engineering lighting, and now gradually developed into home lighting.
Disadvantages: expensive, constant current drive is required, poor heat dissipation treatment is easy to light decay, light efficiency is relatively low, and the color will be missing. Among the 7 bands, the blue and green bands of the LED light are relatively small, so when displaying the color of things There will be missing.
Scope of application: traffic lighting, indoor lighting, landscape lighting.
Home lighting
The above is a brief introduction about the types of lighting sources and their advantages and disadvantages. I believe that after the above introduction, everyone will have a further understanding and understanding of the types of lighting sources. Of course, when decorating the home, no matter which light source is selected for indoor lighting decoration For decoration, we must pay attention to the selection of indoor lighting fixtures. What are the precautions for purchasing home lighting fixtures? Let's take a look at the following introduction:
Precautions for purchasing household lighting fixtures:
1. Safe and moderate combination of natural lighting:
Light is a kind of drug. Abuse of light is harmful to health. Modern life is inseparable from all kinds of lighting. However, if the lighting that surrounds us is not used properly, various problems and even adverse effects on us will occur, so we must be special Notice:
1. Safety should be paid attention to:
Safety should be the first priority in family life, which also requires us to choose brand-guaranteed and safety-certified products when purchasing lamps and their accessories. Although the prices of safety-guaranteed products are slightly higher, the quality is satisfactory. , Generally there will be no problems.
2. Try to choose lamps that do not contain heavy metals:
When choosing lamps, try to choose lamps that do not contain heavy metals, such as mercury, cadmium, lead, etc. Such heavy metals are not easily degraded by microorganisms and have obvious toxicity, which has a great impact on the environment, especially energy-saving lamps containing mercury vapor. The breaking of the bulb will cause the emission of mercury vapor. Care should be taken when choosing. Generally, the index of heavy metals will be given at the end of the product manual to tell consumers which medium metals are contained in the product.
3. Follow the principle of moderation:
The home environment is the environment of our daily life. Therefore, the lighting use should follow the principle of moderation. The interior should not be too bright or too dark. Too bright lighting is harmful to our eyes; too dark indoor environment is prone to visual fatigue, and at the same time, we Emotions are also easily affected.
4. Combination of natural lighting and artificial lighting:
Household lighting should be combined with natural lighting and artificial lighting, instead of relying solely on lighting. Sunlight can kill harmful microorganisms in the indoor air; it can improve human immunity. It can be seen that natural lighting is also indispensable. Household lighting should not block sunlight. outdoor.
2. Pay attention to energy-saving and not overdo it:
1. Choose energy-saving lamps:
The average daily lighting time in household lighting is not long, but energy conservation is still an indicator that needs attention. Although the initial investment of lamps with good energy-saving performance is larger, they can benefit from it in the future, and they are also in line with green environmental protection in the long run. Require.
2. The lighting should be coordinated:
The lighting should not be too many or too complicated, so as not to endanger the health of the human body. If the color of the lighting is too contrasted, it will not only damage the eyesight, but also interfere with the function of the brain’s high-level nerves. Too much color will easily cause light pollution. An obvious example is that the light pollution in the disco is very serious, and it is easy to cause discomfort to the eyes. In addition, unreasonable lighting colors will also affect the visual development of children. It is best to use no more than 3 lighting colors in a room. The colors should also be coordinated and unified.
3. Reasonable lighting matches to create a good lighting environment:
Mainstream home lighting sources: energy-saving lamps, metal halide lamps, LED lamps. The life of energy-saving lamps can reach 10,000 hours, and the price is lower than LED lamps. However, energy-saving lamps contain mercury vapor, which may cause mercury pollution. It is not recommended for household lighting In large-scale use, metal halide lamps are a kind of incandescent lamps. The lifespan is generally between 3000 and 4000 hours. Due to the relatively short life span and small illumination range, this type of lamp is generally used for indoor accent lighting. LED lights are also light-emitting diodes. , Has many advantages of long life, high luminous efficiency, energy-saving and environmental protection lamps, and is superior to other lamps in performance. With the gradual decline in prices, LED lamps will be the best choice for home lighting in the future.
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