Naturally, you need to buy a lamp for home decoration. The stylish and simple ceiling lamp has the characteristics of space saving, easy installation, easy cleaning, and good overall lighting effect, and has become the preferred basic lighting choice for many families. Faced with a dazzling array of ceiling lights, how should we choose ceiling lights?
First of all, everyone should understand that a ceiling lamp (no matter what kind of lamp) is composed of three parts: the lamp body, the light source and the electrical appliance, the most important of which is the light source, because it is the part that can really bring everyone the lighting effect. The lamp body is generally used as a decoration and auxiliary light source. The electrical appliance is for the stable light emission of the light source, or to give the light source an instant start voltage, etc. Therefore, for the ceiling lamp, the light source is the most important.
August 31 Philips Special Group Purchase Meeting: https://tg.jia.com/shanghai/23721/
1. Look at the area and seek the light effect
As a compact luminaire, the ceiling light is very suitable for domestic mainstream commercial houses with a general storey height between 2.6m-2.8m. The advantage of the ceiling lamp is that it does not take up space, the overall lighting effect is good, the style is rich, and it can meet the needs of multiple uses in a space of domestic families.
There are many places in the home where ceiling lamps can be installed, and the living room and bedroom are the most important and the focus of the entire home. But in the actual use process, people are often entangled due to technical obstacles. During the purchase process, I only pay attention to the selection of the shape, but I do n’t know whether the lighting effect brought by these lamps is sufficient. In the actual use process, many people have encountered such an experience: if the light is too dark, you can only install Fluorescent lamp brackets are used for auxiliary lighting, which affects the appearance; that is, the entire room is too bright, forming a strong local light pressure and high power consumption.
The choice of ceiling light is directly related to the height and area of ​​the specific space, and the function of the space must be considered.
The Chinese are used to being bright and bright. As a space for guests, meetings, and dining, from the professional data, it is an average illuminance of about 150Lx (lux) (illuminance is a lighting term, meaning the number of luminous fluxes per unit area, Identify the brightness of a place.) Too bright will cause excessive light pressure and even glare, affecting health and comfort. The average illuminance of the space for rest and sleep is usually 150 Lx (lux), only 75 Lx (lux) during rest, the illuminance of the book when reading is generally 300 Lx (lux), and the surrounding illumination of watching TV is controlled at 50 Lx (lux) . The illuminance is centered on the lamp and gradually decreases with distance.
(National standard illuminance reference value)
Illumination can be calculated from the luminous flux emitted by the luminaire (technical term is the total number of light emitted by a lamp in a unit of time, the unit is called lm (lumens)). Generally speaking, the greater the power, the greater the luminous flux. The power of ceiling lamps is generally 10w, 18w, 21w, 22w, 28w, 32w, 40w, 56w, 68w, 108w, etc. Commonly used fluorescent light sources are energy-saving bulbs, ring tubes, H tubes, 2D tubes and so on. The following table is some experimental data of our commonly used wattage: (in the same 10㎡ space area, under the condition of 2.8m layer height, the difference in illuminance between 22w, 32w and 40w)
(22W: luminous flux 1500lm)
(40W: luminous flux 3000lm)
From the above charts, we should pay attention to the changes in the area of ​​the illuminance area and the illuminance value in the first figure, while looking at the maximum value on the work surface in the table. Through the average illuminance value and illuminance ratio, we can also see the change in illuminance uniformity in the ceiling light effect.
such as:
1. The 22W ceiling lamp is within 10㎡. We can see that the illuminance can reach 100Lx in a radius of about 50cm around the ceiling lamp. The maximum illuminance to reach the working surface can reach 111Lx. The average illuminance of the entire space working surface is 69Lx. It means that if your space is a bedroom, then your illuminance is close to the national standard (average illuminance of 75Lx on the horizontal plane). If your range of activity is mainly working under a ceiling lamp with a diameter of about 1m, 111Lx illuminance can also meet your needs Normal living requirements. If you want to engage in the refined work of reading lights, you need to install auxiliary lighting. If it is used in the living room (the average illuminance value of the living room is 150lx), then the illuminance is not enough.
2. The 32W ceiling lamp is within 10㎡, we can see that the illuminance can reach 100Lx in the radius of 100cm around the ceiling lamp (which has changed from the 22W illuminance direction), and the maximum illuminance to the working surface can reach 120Lx. The average illuminance of the space working surface is 109Lx. From the perspective of average illuminance, the whole space is greatly bright, which is close to the illuminance standard (150Lx) that can be used in the living room. In particular, the increase in the center's range of activities is also suitable for the characteristics of a small living room.
3. The 40W ceiling lamp is within 10㎡. We can see that the illuminance can reach 150Lx in a radius of about 50cm around the ceiling lamp. Almost the entire 10㎡ can reach the area of ​​100Lx, according to the domestic living room generally 15-20㎡ In general, the main activity area is only 10㎡, which is completely suitable for general living requirements. Of course, in order to expand the lighting area, you can consider doing some auxiliary lighting, using ceiling spotlights on the background wall, setting up floor lamps and the like to ensure lighting when reading, and so on.
When people choose, they can adjust the comparison according to their own habits and the size of the space, and they can know whether the lamp illumination they choose is enough.
Several factors affecting light efficiency:
1. The height and area of ​​the space
2. The structural complexity of the space
3. Lamp power
4. The quality of the ballast
5. The quality of the lampshade
6. The quality of the lamp, whether it is a three-color tube
August 31 Philips Special Group Purchase Meeting: https://tg.jia.com/shanghai/23721/
Second, look at the style, choose the light color
Selecting the light color of the ceiling lamp requires the style of the supporting space. It is professionally called the color temperature. The unit of measurement for the color temperature is K. The higher the color temperature, the bluer the color, and the redder the converse. , Neutral light (4200K), white light (6400K). Poor use of color temperature will seriously affect the style of space, and may even affect people's psychology. A blue-and-white space with a color temperature of (3500K) will appear to be red with green, which is extremely dissonant and uncomfortable.
The current decoration styles are: modern minimalist style, classic European style, rural style, Nordic IKEA style, Mediterranean style, Chinese style, Japanese style, Korean style mix and match ...
Here are some common decoration styles, and make corresponding color temperature suggestions:
Factors affecting the color temperature of ceiling lamps:
1. The original set value of the light source;
2. The quality of the lamp, whether it is a three primary color tube;
3. The purity of the lampshade.
3. Look at the layout and choose the style
The lamp can become the protagonist of a space, or it can be an accessory of a space, everything fits well, everything is as good as harmony.
After the style is selected, the space height and area are also allowed. If the lamp is the protagonist to reflect the characteristics of the decoration style, then you should choose a lamp with strong characteristics to decorate the space as a video. However, there is often a relationship between the floor height and area of ​​the current commercial housing. It is not always possible to achieve such a situation. Therefore, many times you will choose to pay attention to basic functions, but with a certain style of ceiling lights as a supplement.
There is also a situation where the lamp serves as the supporting role of the space, and it is important to form a good light environment. In this case, the ceiling lamp selected should be as simple as possible and close to the color of the ceiling, so as to achieve the purpose of highlighting the main body.
Several factors affecting style:
1. Space size and floor height
2. Primary and secondary relationship in decoration structure design
4. Look at the details and choose the quality
As the saying goes, "good details are half the battle." Brands that pay attention to quality generally pay attention to details from two aspects: one is construction and application, and the other is production process.
1. Construction and application: Brands that pay attention to quality always expect to better meet the application of consumers, so the construction environment and use environment will be fully considered in the product, as long as possible to ensure the long-term use of lamps and humanized products. There are many such small details in the ceiling light:
â‘ Install sealing strip to prevent mosquitoes;
â‘¡ The convex points of the chassis make the ceiling lamp form a certain isolation space from the ceiling and increase the heat dissipation;
â‘¢ Stick adhesive tape to the hole of the base to prevent mosquitoes from entering the lamp body;
â‘£ Decorate the transparent decorative edge around the ceiling lamp, which is beautiful and can reduce the illuminance ratio of the light source to avoid glare;
⑤ The internal wiring is reasonable, and the wiring is standardized to avoid hidden dangers caused by chaotic lines;
â‘¥ Install the protective rubber ring through the threading hole to avoid the hidden dangers caused by the damage of the line, etc ...
Second, the production process: the details of the production process, everyone generally has feelings and experience. such as:
â‘ Smooth treatment of material corner burrs;
â‘¡ The joint is smooth and even;
â‘¢ Even plating and spraying;
â‘£ Brightness of electroplating accessories;
⑤ Even color;
â‘¥ The level of materials;
Good products and bad products are also very different in product materials. For example, some PMMA materials of lampshades use recycled materials. The surface of this material looks dull, the gloss is poor, and even some impurities, the surface thickness is not enough Uniform, light transmission is only 60-70%, affecting the luminous efficiency. After half a year of use, the phenomenon of yellowing and brittleness will appear, which not only affects the appearance, but also presents hidden safety hazards. The genuine PMMA material used for quality products has a uniform and fair surface, high toughness, and a light transmittance of 90% -95%. It will not yellow and become brittle after long-term use. Add light diffuser, high-quality matte surface treatment, light Diffusion is more soft and pleasing to the eye, effectively preventing glare and other characteristics.
Another example is the chassis. The quality-oriented products are made of 2.2mm metal materials, which are flat and solid, and have a good parallelism with the ceiling. And bad manufacturers often use materials below 1.8.
[Tips for buying masks]: First press the mask with your hand to see how soft it is and how soft it is; then put your hand over to see the color and ruddyness; finally open the mask to see if it is convenient to remove.
Fifth, look at electrical appliances, know efficiency
All fluorescent light sources need a ballast to light up. The ballast can bring instant starting voltage and stable voltage to the light source. The fluorescent lamp without ballast is not lit! The quality of the ballast directly determines the life and light efficiency of this lamp. Manufacturers who usually pay attention to quality must pay attention to the quality of the ballast.
There are two types of ballasts: inductive ballasts and electronic ballasts. Compared with inductive ballasts, electronic ballasts can improve the light efficiency of lamps and systems, and can be instantaneously started to extend the life of lamps. At the same time, it has a small temperature rise, no noise, small size, light weight, and power consumption is only 1/3 to 1/4 of inductive ballasts, so consumers should choose electronic ballast ceiling lights.
August 31 Philips Special Group Purchase Meeting: https://tg.jia.com/shanghai/23721/
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