In decoration, lamps and lanterns are an indispensable thing, not so much a decoration item, but the most basic living needs.
First, the basic concept of artificial lighting
To talk about artificial lighting, we must first understand the basic concepts of lighting:
Luminous flux: the radiant energy that the human eye can perceive. The sum of the products of the radiant energy of each band and the relative visibility of the band. The unit symbol is lm.
Illuminance: The luminous flux density incident on a surface, the symbol is lx.
The luminous flux of a 40W incandescent lamp is about 340 lm; the luminous flux of a 40W fluorescent lamp is about 1700-1900 lm.
There are two ways to set up home lighting lamps:
1. Set up two schemes according to general lighting and special circumstances. For example, a small lamp and a brighter desk lamp are used in the study room.
2. Set up a set of plans according to special circumstances: for example, only one headlight is set in the study room.
The first group of solutions above is a better choice. First of all, according to different situations, choose different illuminance, which is conducive to protecting eyesight and avoiding damage to eyesight caused by long-term too strong or too weak light. On the other hand, it is beneficial to save electricity, thereby saving money.
Second, the choice of lamps
1. The style of lamps and lanterns
1) First of all, you need to buy lamps according to your own different styles. For example, in a modern style, it is suitable to choose some lamps with a combination of stainless steel and frosted glass. For the traditional style of Europe and the United States, it is suitable to choose some lamps such as Rococo lines and metallic toner.
2) Where possible, the lighting fixtures in the living room, dining room and bedroom should be of the same design. According to the author’s experience, this is possible. Another option is to keep the same style in the living room and dining room, and use another style for the lamps in the bedroom.
3) Waterproof ceiling lights can be used for the lights in the toilet and kitchen. Generally, you don’t need to pay too much attention to the style, and the most important thing is to be practical.
2. Types of light bulbs
Today’s household light bulbs are mainly divided into two types: incandescent lamps and energy-saving lamps. Incandescent lamps operate on the principle of conductive heating of tungsten or other metal wires, and the lamp color is yellow (sun color). Energy-saving lamps operate on the principle of gas discharge. Its technical name is self-ballasted fluorescent lamps. In addition to white (cold light), there are now yellow (warm light) ones. Generally speaking, under the same wattage, an energy-saving lamp can save 80% energy than an incandescent lamp, extend the average life by 8 times, and only 20% heat radiation. Under non-strict conditions, a 5-watt energy-saving light can be regarded as equivalent to a 25-watt incandescent lamp, a 7-watt energy-saving light is approximately equal to 40 watts, and a 9-watt energy-saving light is approximately equal to 60 watts.
However, some products on the market are currently on the high side with relatively high prices and poor quality. If they are not selected properly, the problem of “saving energy but not saving money” often occurs.
Another thing to note is that ordinary energy-saving lamps cannot be dimmed, so only ordinary switches can be used. Never use a clock-like dimmer switch to control energy-saving lamps. However, according to reports, foreign countries have developed energy-saving lamps that can be dimmed, but the author did not find such energy-saving bulbs in the market when the manuscript was completed.
Third, the purchase of lamps
The purchase of lamps is very exhausting. Before buying, you must fully warm up your neck and turn your head according to the radio gymnastics method we learned when we were young. Otherwise, you must be complaining when you come back after buying the lamp. When buying lamps, you need to look more, it is best to choose a professional market for lamps. Many stores only deal in the styles of a few specific manufacturers, so looking more is the only way. In the professional market of lamps and lanterns, because of the concentration of styles, it saves you trouble, effort and energy, and the price is also comparable.
Fourth, the installation of special lamps
The special installation of household lamps is mainly the ceiling part. Many people like to install diffused lights in the dark, but not everyone can install them well. The trick is:
1. End to end. Fluorescent lamps should be installed one by one. Since you don’t often use diffused lights, don’t feel bad.
2. The highest position of the lamp tube is at the same level as the edge of the light groove frame of the modeling ceiling.
3. A small light tube (fluorescent lamp) can be used in places with arcs, not a big one.
4. The color of the light can be white, yellow and blue (purple). Do not use other colors, especially red and green. The former is simply a pornographic place, and the latter has become a horror zone.