Traditional Culture Encyclopedia - Traditional customs - What kinds of lighting lamps are there?
What kinds of lighting lamps are there?
What kinds of lighting lamps are there?
1. Incandescent lamp: Also known as light bulb, its working principle is that when current passes through the filament (tungsten filament, melting point reaches more than 3,000 degrees Celsius), it generates heat, and the spiral filament continuously accumulates heat, so that the filament temperature reaches more than 2,000 degrees Celsius. When the filament is hot, it emits light like hot iron. The higher the temperature of the filament, the brighter the light it emits. So it's called incandescent lamp.
Advantages: small light source and various lampshades; Universal, colorful, directional, scattering, diffusion and other forms; It can be used to enhance the three-dimensional sense of objects, and the color of incandescent lamps is closest to the color of sunlight.
Disadvantages: Environmental protection is the biggest disadvantage. When incandescent lamps are used, 95% of electric energy is used for heating, and only 5% of electric energy is really converted into visible light; High heating temperature, rapid thermal evaporation, short service life (1000 hours), high infrared component, easy to be affected by vibration, low color temperature and yellowish color.
2. Fluorescent lamp: Also called fluorescent lamp, its cathode fluorescent lamp contains argon (including neon or krypton) and a few drops of water. Mercury atoms leaning against the lamp tube release ultraviolet light during gas discharge, and fluorescent substances on the surface of the lamp tube absorb ultraviolet light and release visible light. Different fluorescent substances will emit different visible light.
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%. Therefore, the efficiency of fluorescent lamps is about 60% × 40% = 24%-about twice that of tungsten lamp with the same power.
Disadvantages: it will produce light decay, and the color rendering of fluorescent lamps is not as good as that of incandescent lamps; The flashing lights have a certain impact on vision; In addition, there is mercury pollution during production and after waste.
3. Energy-saving lamp: Also called compact fluorescent lamp, the luminous principle is not much different from that of fluorescent lamp. However, the volume of energy-saving lamps is relatively small, and the volume of electronic ballasts used is small, so the stroboscopic phenomenon is reduced.
Advantages: high light efficiency, more than 5 times that of ordinary incandescent lamps, and obvious energy-saving effect; Long service life, about 8 times that of ordinary light bulbs; And is small in size and convenient to use.
Disadvantages: it will produce light decay; Low color rendering, incandescent lamp and halogen lamp color rendering 100, perfect; The color rendering of energy-saving lamps is mostly between 80 and 90. The light source with low color rendering is not only unsightly, but also harmful to health and vision.
4.LED lamp: Also called light-emitting diode, it is a solid-state semiconductor device that can directly convert electricity into light. The heart of LED is a semiconductor chip, which consists of three parts, one is a P-type semiconductor, and the other is an N-type semiconductor, where electrons are the main ones, and there is usually a quantum well with a period of 1 to 5 in the middle. When the current acts on this chip through the wire, electrons and holes will be pushed into the quantum well, where they will recombine with the holes and then emit energy in the form of photons, which is the principle of LED light emission.
Advantages: LED lamps have many advantages, such as small size, low power consumption, long service life, non-toxic and environmental protection. They were originally used for outdoor decoration and engineering lighting, and now they have gradually developed into household lighting.
Disadvantages: expensive, need constant current drive, poor heat dissipation, easy to light decay.
How to buy household lamps?
1, key points of ceiling lamp purchase:
(1) Purchase quantity: The places where a house needs ceiling lamps are living room, dining room, balcony, kitchen, bathroom, bedroom and study. Consumers should count the number of ceiling lamps before buying them. Like the bedroom, you can choose the same series of products; The living room and dining room can choose maternal and child series products; Kitchen and bathroom can choose products with the same size as integrated ceiling.
(2) Shape selection: The ceiling lamp has two shapes: round and square. General bedroom, study and other living rooms choose circular ceiling lamp is more appropriate; Square ceiling lamps such as living rooms and restaurants seem to have a wider space; Kitchen and bathroom are generally square like integrated ceiling.
(3) Mask material: The mask of ceiling lamp is something we can really touch. At present, there are many manufacturers producing ceiling lamps on the market, and the mask materials used are also different. The most common ones are acrylic masks, plastic masks and glass masks. The best is the imported acrylic mask that has been stretched twice. To test the quality of the mask, you can first press the mask with your hand to see how soft it is. Then reach out your palm and look at the color. Just be ruddy. Finally, open the cover to see if it is convenient to disassemble.
(4) Selection of light source: Ceiling lamps can be divided into ordinary incandescent lamps, fluorescent lamps, tungsten halogen lamps and LED lamps according to the different light sources used. Ceiling lamps with different light sources are suitable for different places, so LED lamps should be the first choice for home use. The ceiling lamp of LED light source is not expensive, but it saves electricity, has long service life, strong brightness and high cost performance.
(5) Size selection: The size of ceiling lamp should be determined according to the lighting area. Be careful not to use small ceiling lamps, which will make the ceiling appear empty, and don't use large ceiling lamps, which will appear presumptuous. Generally speaking, if the bedroom area is below 10 square meter, choose a ceiling lamp with a diameter below 45cm; 10-20 square meters bedroom, choose a ceiling lamp with a diameter of about 60cm; If the bedroom area is 20-30 square meters, the diameter of the ceiling lamp should be about 80cm.
2, chandelier purchase skills:
(1) Check the signs of the chandelier: When buying a chandelier, first check the signs of the chandelier, such as brand, model, rated voltage, rated power, etc. Among them, rated power is particularly important. If the power of the selected chandelier exceeds the standard, the shell and insulation layer may be deformed. The quality of chandeliers is related to the normal use of chandeliers and even the convenience of life. It is best to choose the products of regular professional manufacturers. Keep the shopping voucher to ensure that you can enjoy after-sales service in the future.
(2) the height of the chandelier: the height of the chandelier should be appropriate. It is recommended to use lamps that can be lifted at will to facilitate the adjustment and selection of height. Like the beige chandelier made of plastic, the shape is naturally carved, and the spiral shape of the lampshade can be adjusted at will.
(3) Material selection: When choosing the chandelier material, we should first look at its function, and its form is subordinate to its function. This must be noted, because some chandelier materials are not suitable for some rooms, especially kitchens and other places.
(4) Hardware inspection: check whether there are any defects on the hardware surface that affect the product quality, such as blackening, rust, scratches, lack of paint, paint dropping, paint leakage, paint flowing and dirt; Check whether the chandelier has color difference in collocation; Carefully check whether the hardware components are deformed, burr, etc.
(5) Inspection of original electrical appliances: Many chandeliers are made of wrought iron, and the products have strong conductivity, so consumers should pay special attention to the safety of chandeliers when buying chandeliers.
(6) Load-bearing: The lamp body is large, and gorgeous chandeliers are often the first choice for villa users. Pay attention to whether the supporting structure and material bearing capacity of the bearing meet the standards when purchasing; Whether the lamps with supporting structure and shape are suitable for each part and whether the force is uniform; The chandelier bracket should be enough to support the total weight of the chandelier.
3, wall lamp purchase method:
(1) lampshade quality. When buying a wall lamp, you should first look at the quality of the lamp itself. Lampshades are usually made of glass, while brackets are usually made of metal. The lampshade mainly depends on whether its light transmission is appropriate, and the patterns and colors on the surface should echo the overall style of the room. Whether the corrosion resistance of metal is good or not and whether the color is bright and full is an important index to test the quality.
(2) the brightness of light. Generally speaking, soft light is better, and the degree is less than 60 watts. In addition, different types of wall lamps should be selected according to the installation needs. For example, use a single wall lamp when the room is small, use a double wall lamp when the room is large, and choose a thicker wall lamp when the space is large; On the contrary, choose a thinner one. Finally, it is best to choose a wall lamp with a protective cover, which can prevent the wallpaper from catching fire and causing danger.
4, spotlights need to know:
(1) power supply: spotlights are divided into low voltage and high voltage. Consumers had better choose low-voltage spotlights, which have longer life and higher light efficiency. The light efficiency of spotlights is reflected by the power factor. The higher the power factor, the better the light efficiency. The power factor of ordinary spotlights is about 0.5, which is relatively cheap. The power factor of high-quality spotlights can reach 0.99, which is slightly expensive.
(2) Safety: spotlights are generally used to enhance the lighting of decorations and are generally embedded in the ceiling or wall. Spotlight generally emits high temperature when it works, so you must buy high-quality products, otherwise there will be safety hazards.
(3) Lamp beads: transformers should be used for spotlights, and the lamp beads should be of good quality, otherwise the lamp beads of spotlights will easily break down. Think about it, it's quite troublesome to replace the lamp beads on the ceiling.
(4) Brand: At present, the quality of spotlights on the market is mixed, which is difficult to distinguish with the naked eye. Therefore, it is best to choose brand products and matching high-quality transformers when buying spotlights.
5, floor lamp purchase strategy:
(1) When buying a floor lamp with a ceiling lamp, you should first consider factors such as the height of the ceiling. If the ceiling is too low, the light can only be concentrated in local areas, which will make people feel that the light is too bright and not soft enough. At the same time, the ceiling at home should be white or light-colored, and the material of the ceiling should have a certain reflective effect.
(2) When buying a direct-type floor lamp, pay attention to that the lower edge of the lampshade is better than the eyes, so that the eyes will not feel uncomfortable because of the illumination of the bulb. In addition, the indoor light contrast will increase the eye load, and try to choose a floor lamp that can be dimmed.
(3) If you want a better decorative effect when buying a floor lamp, you can choose a molded floor lamp, which is not used for lighting, but more like a "light sculpture" placed in the home environment. Of course, when buying this kind of floor lamp, we should consider its consistency with the overall style of home.
How to choose indoor lamps?
1, bathroom lamp selection:
Incandescent lamps should be chosen instead of energy-saving lamps. Toilet lamps are generally used for a short time and frequently, so incandescent lamps are the most suitable choice, not energy-saving lamps. The reason is that incandescent lamps have fast starting speed, short starting time and limited energy consumption. However, in the case of low room temperature in winter, the energy-saving lamps are turned off for a short time before the brightness is fully reached, and the energy-saving advantages cannot be reflected. In addition, the color temperature of incandescent lamp is yellow, which can give people a warm feeling and suit the needs of bathroom, especially in winter.
Ceiling lamps and wall lamps should be selected. In terms of lamp modeling, bathroom lamps should choose ceiling lamp or wall lamp. Needless to say, the advantages of bathroom ceiling lamp, wall lamp is also more suitable for bathroom lamp. Attention should be paid to the moisture-proof and waterproof function of lamps and lanterns in wall bathroom. The shape of the wall lamp generally avoids the damage of water vapor to the lamp.
2, the living room lamps and lanterns choice:
The choice of lamps and lanterns in the living room is irregular and can be chosen according to the size and style of the space. If the space is small, you can choose a main light. If the space is large, you can use a variety of lamps to create an atmosphere. It should be noted that the living room is a place to receive visitors, so the light must be sufficient. Common lamp collocation styles are chandelier plus downlight or light strip.
3, bedroom lamps and lanterns selection
Bedroom is a private space for rest, and softening is the key point of bedroom lighting arrangement to ensure the relaxation of the owner's mood. Therefore, it is best to give priority to warm yellow lighting in the bedroom. At the same time, downlights or wall lamps can be embedded in the bedside, and downlights can also be embedded in decorative cabinets to make the room more romantic and comfortable.
4. Selection of dining room lamps and lanterns
The choice of dining room lamps can be based on the shape of the dining table. For example, it is appropriate to install a chandelier with an appropriate height above the square dining table, and it should be equipped with a lampshade. If the dining table is round, in addition to installing a long-line chandelier directly above it, a circle of hidden downlights can be installed on the ceiling as an auxiliary light source. If you pay more attention to the atmosphere when eating, you can choose a wall lamp with freely adjustable brightness as the dining room lamp.
5. Selection of kitchen lamps and lanterns
The kitchen is a place for cooking. Try not to dress too fancy. It is best to choose cabinets with their own lamps. In terms of energy saving, don't install too many lights. Generally, ceiling lamps are not used, because they do not concentrate light, but only scatter light, so they are not suitable for installation in the kitchen. Try to choose warmer light as the light source, which is very beautiful.
6. Selection of study lamps and lanterns
The study is an important place for work and study. Therefore, in the choice of lamps and lanterns, we must ensure adequate and reasonable reading lighting. For those who often write at their desks, it is best to prepare a desk lamp as a local lighting desk lamp, which is both professional and beautiful. Direct lighting is not recommended. In addition, it is suggested that indirect light sources can be placed around the ceiling for lighting. Indirect lighting can avoid the visual glare damage caused by direct light.
7, corridor lamps and lanterns selection
Many families will ignore the lamps in this space. In fact, the choice of corridor lights is also very particular. If matched with exotic shell wall lamp and meteorite wall lamp, it not only plays the role of auxiliary lighting, but also is a beautiful home decoration. In addition, if the corridor is too long, it is recommended to match the spotlights with natural light at the top, and the matching of wall lamps must be consistent with the overall style of the family.
Which brand of lamp is good?
1, Philips (Philips (China) Investment Co., Ltd., founded in 189 1, is a global leader in home lighting and a provider of innovative intelligent interconnected LED lighting solutions).
2. Opal (Opal Lighting Co., Ltd., which started in 1996, is an enterprise integrating the development and sales of LED and traditional light sources/lamps/appliances, and is quite famous in the fields of energy-saving lamps and ceiling lamps).
3. Panasonic (Panasonic (China) Co., Ltd., 19 18 is a world-famous brand in Japan, involving household appliances, lighting, audio-visual electronics and many other fields, and is a world-famous comprehensive electronic technology enterprise group).
4. Foshan (Foshan Electric Light Source Co., Ltd., founded in 1958, a famous brand product in Guangdong Province, a listed company, a high-tech enterprise and a large-scale backbone enterprise in the national electric light source industry).
5.NVC (Huizhou NVC Optoelectronic Technology Co., Ltd., NVC Kitchen and Bathroom Electrical Appliances Division, founded by NVC Lighting in 2003, integrating R&D/ Ceiling/Yuba/Exhaust Fan production/sales).
6.TCL(TCL Group Co., Ltd., a famous lighting brand under TCL Group, the best solution provider for integrating products and services in the field of LED lighting/integrated ceiling)
7. Huayi (Zhongshan Huayi Lighting Co., Ltd., founded in 1986, is a high-tech enterprise specializing in lighting/lighting and a well-known comprehensive lighting brand in the industry).
8. OSRAM (OSRAM (China) Lighting Co., Ltd., founded in 1906, is a global operator of automotive lamps and automotive LED lamps, and a supplier of lighting management systems and lighting solutions).
9. Midea (Midea Group Co., Ltd., provider of all-round overall energy-saving lighting solutions, top ten brands of lamps and lighting, wholly-owned subsidiary of Midea Group)
10, Aoduo (Aoduo (Shanghai) Electronic Technology Co., Ltd., a large-scale online sales lighting brand, a one-stop home improvement intelligent platform, and a venture capital lighting brand company)
These are the types of lighting that Bian Xiao brought to you. How to buy household lamps? The whole content.
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