Are dome ceiling lights fluorescent?
No.
A ceiling lamp is a lamp directly fixed on the ceiling, projecting direct light downward, which is an integral lighting. The light source is mainly incandescent lamp, LED lamp and fluorescent lamp. Ceiling lamps are mostly used in hallways, corridors, kitchens, bathrooms and bedrooms due to their small footprint and even and soft lighting. At present, the ceiling lamps on the market are made of glass, plastic, wood, titanium and other materials, and there are various styles such as hood type and curtain type. Most of the ceiling lamps that use incandescent lamps as light sources use translucent plastic covers or glass covers, and most of the ceiling lamps that use fluorescent lamps as light sources use metal lattices as lamp covers.
The difference between the hemispherical ceiling light and the spherical ceiling light
The hemispherical ceiling light is the kind of flat row, and the spherical ceiling light is close to the spherical one.
How to choose a hemispherical ceiling lamp First, look at the area and find the light effect
As a compact lamp, the ceiling lamp is very suitable for domestic mainstream commercial buildings with a general floor height between 2.6m and 2.8m. The advantage of the ceiling lamp is that it does not take up space, the overall lighting effect is good, and the styles are rich, which can meet the needs of domestic families for multiple purposes in one space.
There are many places where ceiling lamps can be installed in the home. The living room and bedroom are the most important and the focus of the whole home. However, in the actual use process, people are often very entangled due to technical obstacles. In the purchase process, only pay attention to the selection of the shape, but do not know whether the lighting effect brought by these lamps is sufficient. Fluorescent lamp brackets are used to assist lighting, which affects the appearance; that is, the whole room is too bright, resulting in strong local light pressure and high power consumption.
The selection of hemispherical ceiling lamps is directly related to the height and area of the specific space, and the function of the space should be considered at the same time.
Chinese people are used to being bright and dignified. As a space for meeting guests, discussing affairs and dining, from professional data, it is an average illuminance of about 150Lx (lux) (illuminance is a lighting term, which means unit area The number of luminous flux received on the board indicates the brightness of a certain place.) Too bright will cause excessive light pressure, even glare, affecting health and comfort. The average illuminance of the space for rest and sleep is generally 150;Lx (lux), only 75 Lx (lux) when resting, 300 Lx (lux) when reading books, and 50 Lx (lux) when watching TV. ). The illuminance is centered on the lamp and gradually decreases with distance.
Illuminance can be calculated by the luminous flux emitted by the lamp (in professional terms, it is the total number of light emitted by a lamp in a unit 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. The commonly used fluorescent light sources include energy-saving light bulbs, annular tubes, H tubes, 2D tubes and so on.
When people choose, they can adjust and compare according to their own habits and space size, and then they can know whether the illumination of the lamp they choose is enough.
Several factors that affect the light effect:
1. The height and area of the space
2. The structural complexity of the space
3. The power of the lamp
4. The quality of the ballast
5. The quality of the lampshade
6. The quality of the lamp Quality, whether it is a tricolor tube
2. Look at the style, choose the light color
Selecting the light color of the hemispherical ceiling lamp requires the style of the matching space, which is professionally called color temperature. The unit of measurement for color temperature is K. High, the bluer the color, and vice versa, the redder. Generally, the color temperature of home lighting is divided into warm light (3500K), neutral light (4200K), and white light (6400K). Improper use of color temperature will seriously affect the style of the space, and may even have an impact on people’s psychology. In a blue and white space, if the color temperature (3500K) is used, the effect of red and green will appear, which is extremely discordant and uncomfortable.
The current decoration styles generally include: modern minimalist style, classic European style, pastoral style, Nordic IKEA style, Mediterranean style, Chinese style, Japanese style, Korean style…
Factors affecting the color temperature of the ceiling lamp:
1. The original set value of the light source;
2. The quality of the lamp tube, whether it is three primary colors Tube;
3. The purity of the lampshade.
3. Look at the layout and choose the style
Lamps can be the protagonist of a space or an accessory of a space, as long as everything fits and everything is harmonious.
After the style is selected, the height and area of the space are also allowed. If the lamp is the protagonist to reflect the characteristics of the decoration style, then you should choose lamps with strong characteristics to decorate the space as a video. However, there is often a relationship between the height and area of the current commercial housing, and it is not always possible to achieve such a situation. Therefore, many times people will choose to focus on basic functions, but supplemented by ceiling lights with certain style characteristics.
There is also an ambient light as a supporting role in the space, it is important to form a good light environment. In this case, the ceiling light selected should be as simple as possible and close to the color of the ceiling, so as to achieve the purpose of highlighting the subject.
Several factors that affect the style:
1. Space size and floor height
2. Primary and secondary in decoration structure design Relationship
Fourth, look at the details, 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 the construction application, and the other is the production process.
1. Construction and application:
Brands that focus on quality always expect to better meet consumer applications, so they will fully consider construction on products Environment and use environment, as far as possible to ensure the long-term use of lamps and lanterns, product humanization. There are many such small details in the ceiling lamp:
①Install the sealing strip to prevent mosquitoes;
②The convex point of the chassis makes the ceiling lamp and the ceiling form a certain isolation space, increasing the Heat dissipation;
③Attach adhesive tape to the holes of the base to prevent mosquitoes from entering the lamp body;
④Decorate a transparent trim around the ceiling lamp, which is beautiful and can reduce the illumination of the light source
⑤The internal wiring is reasonable, and the wiring should be bundled in a standardized way to avoid potential safety hazards caused by the confusion of the wiring;
2. Production process:
The details of the production process are generally felt and experienced by everyone. For example:
①Smoothing of burrs at the edges and corners of the material;
②Smoothing and uniformity of seams;
③Uniformity of electroplating and spraying;
④ Brightness of electroplating parts;
⑤ Uniformity of color;
⑥ Level of material;
Good products and defective products are in product materials There are also big differences. For example, some defective manufacturers of the PMMA material of the lampshade use recycled materials. The surface of this material looks dull in color, has poor gloss, and even has some impurities. The surface thickness is not uniform, and the light transmittance is only 60-70. %, which affects 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 poses a safety hazard. The genuine PMMA material used in products that pay attention to quality has a uniform and white surface, high toughness, and light transmittance as high as 90%-95%. It will not yellow or become brittle after long-term use. The diffusion is softer and pleasing to the eye, and it can effectively prevent glare damage.
Another example is the chassis. The quality-conscious products are made of 2.2mm metal material, which is flat and solid, and has good parallelism with the ceiling. And bad manufacturers often use materials below 1.8.
3. Mask purchasing skills
First press the mask with your hands to see how soft it is, and it is good; The color is rosy and good; finally open the cover to see if it is easy to disassemble.
5. Look at the electrical appliances and know the efficiency
All fluorescent light sources need a ballast to be lit. The fluorescent lamp of the ballast will not light up! The quality of the ballast directly determines the life and light efficiency of the lamp. Usually, manufacturers who pay attention to quality must pay attention to the quality of the ballast.
There are two types of ballasts: magnetic ballasts and electronic ballasts. Compared with magnetic ballasts, electronic ballasts can improve the light efficiency of lamps and systems. lifespan. At the same time, it has small temperature rise, no noise, small size and light weight, and its power consumption is only 1/3 to 1/4 of that of inductive ballasts, so consumers should choose electronic ballast ceiling lamps.
