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Light selection in different spaces

Light selection in different spaces

living room The living room is the main area for receiving guests and family leisure, so the requirements for lighting are mainly bright and warm. Most of them use neutral light (around 4000-5000K), and depending on the decoration style and soft decoration design of each household, some ambient lighting such as light strips and spotlights can be installed to create a home decoration atmosphere. restaurant As an important dining area in the home, it is best to choose warm colors for lighting in the restaurant. Because psychologically speaking, eating under warm toned lighting is more appetizing, and it is best to choose a color temperature of 3000-4000K (neutral light), which will not make the food too distorted and create a warm dining atmosphere. bedroom The bedroom is the main space for rest and relaxation, so the lighting should be warm and private enough. It is recommended to choose a warm light source. The color temperature should be controlled between 2700-3000K to achieve lighting conditions and create a warm and romantic atmosphere. The lighting fixtures above the head of the bed should not be directly aimed at the eyes. You can choose to install light strips or anti glare spotlights to create an atmosphere. kitchen The kitchen is the most functional area, a space for washing, cutting, frying, and washing dishes. The color temperature should be controlled between 3500-4000K, which not only enhances the visual acuity of the operator, but also allows the dish to display the color that attracts the appetite. toilet The lighting effect of the bathroom is generally not very good, and warm or neutral light (3000-4000K) can be used. The environment of the bathroom looks bright and comfortable. aisle The hallway is the main passage connecting the living room, and the color temperature is controlled between 3500-4000K, so the overall brightness is sufficient. For those who have hanging paintings, they can choose to install spotlights so that the light shines on the hanging paintings for a more beautiful feeling.

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Smart streetlights: a new type of energy-saving and environmentally friendly urban lighting facility

Smart streetlights: a new type of energy-saving and environmentally friendly urban lighting facility

With the continuous acceleration of urbanization process The energy consumption of cities is also constantly increasing Traditional street lights use traditional energy sources such as electricity and fuel, which not only consume a large amount of energy resources but also cause pollution to the environment. Therefore, new energy street lights have emerged, which use renewable energy sources such as solar and wind energy, and have many advantages. Firstly, new energy street lights use solar energy as the main energy source and do not require power from the grid, making their installation and use more convenient. Solar panels can directly absorb solar energy and convert it into electricity, without being limited by power supply, and can provide stable energy for street lights. Moreover, solar panels can be installed on the entire lamp post of the street lamp without the need for additional solar panel brackets, saving installation time and material costs. Secondly, new energy street lights use renewable energy and do not emit harmful gases and pollutants. Traditional energy street lamps use fossil fuels such as petroleum and ethylene, which emit a large amount of harmful gases such as carbon dioxide and sulfides during combustion, posing a threat to the atmospheric environment and human health. Solar street lights use solar energy and do not produce greenhouse gases such as carbon dioxide. They do not pollute the environment and are a clean energy source. In addition, the solar illuminance sensor used in new energy street lights can autonomously adjust the brightness based on the lighting level of the surrounding environment. When there is sufficient sunlight during the day, new energy street lights will automatically turn off to save energy. At night or when there is insufficient lighting, the street lights will automatically turn on and adjust to the appropriate brightness to ensure the lighting effect of the road. Compared to traditional street lights, it saves a lot of energy and reduces operation and maintenance costs.

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How to choose lighting fixtures

How to choose lighting fixtures

Look at the appearance It is not recommended to choose lighting fixtures with complex shapes that match the decoration style as much as possible. The simpler the lighting fixtures, the more durable they are and less likely to become outdated. Check the wattage Don't ask if the light is on, just ask the wattage. The higher the wattage, the brighter the light. The suitable lighting for home is 3-5 watts per square meter. The brighter the lamp, the better. It is necessary to choose different wattage lamps based on the different functions of each space. Check color temperature Color temperature refers to the color of light, and the warm light and white light we mention when choosing lighting fixtures are actually referring to the color temperature of the light. The lower the color temperature, the warmer the light; The higher the color temperature, the colder the light. Watch the strobe In fact, it is impossible to have no flicker. The flicker requirement for qualified products in the Chinese industry standard is 3125Hz. When choosing lighting fixtures, it is important to ask the merchant whether they are able to prevent flicker. Do not buy lamps with severe flicker, as it can have a significant impact on the eyes and cause irreversible damage such as tears, dry and tired eyes, and even decreased vision. Here, the editor teaches you how to distinguish. After installation, you can take a video with your phone to verify that there are no fluctuations, which means it is qualified.

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Selection Techniques for Courtyard Lantern Viewing

Selection Techniques for Courtyard Lantern Viewing

1. Choose the appropriate location. Courtyard lights are generally located at entrances and exits of garden green spaces, squares, transportation arteries, garden roads and intersections on both sides, steps, surrounding buildings, fountains, sculptures, lawn edges, etc. Coordination between lighting and environment. According to the different garden environments, the selection of garden lighting intensity should be appropriate. The entire courtyard lamp should have a unified lighting layout, making the illumination of the courtyard lamp uniform and undulating, with an artistic effect of light and dark rhythm. 3. Choose the appropriate height of the lamp post. To ensure uniform illumination, in addition to ensuring uniform lighting layout, reasonable distance, and appropriate height of lamp columns. This layout still needs to be combined with the characteristics of the project and based on various factors such as shape for a reasonable layout. Beyond is a brief introduction to the role and selection techniques of landscape lights, hoping to be helpful to everyone.

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Why are LED lights commonly used in smart street lights

Why are LED lights commonly used in smart street lights

LED street lights are chosen as the light source for street lights because they have the advantages of high efficiency, safety, energy conservation, environmental protection, long service life, fast response speed, and high color rendering index. They are of great significance for urban energy-saving lighting. Small size, light weight, low light attenuation of street lights, less than 3% light attenuation in a year, fast response, reduced power, and saved electricity. It can achieve functions such as computer dimming, time division control, light control, temperature control, etc. In addition to these, LED street lights have high light quality and are basically non radiative, making them a typical green lighting source. They are not only reliable and durable, but also have low maintenance costs.

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What are the standards for municipal road lighting

What are the standards for municipal road lighting

The municipal road lighting standards are: (1) The external dimensions, embedded parts, reserved holes, and specifications and spacing of foot bolts of the street lamp foundation and equipment foundation should meet the design requirements. (2) The verticality of the lamp post is ≤ 3mm/m (3) Installation position of street lamp post: The deviation of the lamp post from the centerline is ≤ 50mm (4) The grounding resistance of the metal lamp pole for street lamps is ≤ 10 Ω. (5) The grounding resistance of the street light control box and distribution box should be ≤ 4 Ω. (6) The insulation resistance value (phase to phase, ground to ground) of the street light control box, distribution box, and feeder line should be ≥ 0.5M Ω. (7) The phase sequence of street lamp power supply should meet the design requirements. (8) The street lights should light up normally after starting. (9) The light control and time control functions of street lights should meet the design requirements.

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What are the functions of landscape lights

What are the functions of landscape lights

With the continuous improvement of people's aesthetic awareness, the emergence of various styles of landscape lights has brought a lot of beauty to our gardens, parks, squares and other places. Landscape lights not only have decorative functions, but also many other functions. So, let's take a look at the functions and selection techniques of landscape lights. Firstly, landscape lights mainly have the following functions:. 1. Reduce the burden of urban lighting projects. Landscape lights are suitable for urban squares, major parks, landscape pools, courtyards, characteristic roads, etc. 2. Good lighting. Although the biggest function of landscape lights is decoration, their lighting function is still very good. The lighting intensity, brightness, and softness can be adjusted according to specific occasions, and are not inferior to specialized lighting street lights. Good guidance at night. Highlighting the main landscape at night, creating a virtual and real relationship with the surrounding environment, and enriching the landscape hierarchy at night. 3. Extremely decorative. One important aspect of urban lighting engineering is to beautify the city while also beautifying landscape lights. Many monotonous city squares are more distinctive due to their landscape lights. The different colored lights provide a rich viewing experience for the monotonous night. A row of continuous lights or array lights brings a sense of rhythm. Even during the day, artistic lighting has high ornamental value. 4. Energy conservation and ecological environment protection. Urban lighting engineering emphasizes energy conservation and ecological environment protection, adding a green atmosphere to the city. Nowadays, many landscape lighting systems have strong energy efficiency. They not only use solar energy for power supply, but also produce environmentally friendly materials that conform to the concept of urban greening. 5. There are signs and prompts, and specific lights can indicate where you are in the park and what area.

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In the first half of the year, both wind and photovoltaic power generation maintained double-digit growth

In the first half of the year, both wind and photovoltaic power generation maintained double-digit growth

The National Energy Administration recently released the grid connected operation of wind and photovoltaic power generation in the first half of 2020: in the first half of 2020, wind power generation reached 237.9 billion kilowatt hours, a year-on-year increase of 10.9%; The photovoltaic power generation reached 127.8 billion kilowatt hours, a year-on-year increase of 20%, both maintaining double-digit growth. The regions with higher utilization hours of wind power are Yunnan, Sichuan, and Guangxi; The utilization hours of photovoltaics are in the Northeast region. In the first half of the year, the cumulative power generation of wind and photovoltaic power accounted for about 11% of the total power generation, an increase of 1.5 percentage points year-on-year, and the substitution effect of green energy continued to strengthen. According to the person in charge of the National New Energy Consumption Monitoring and Warning Center, the overall consumption and utilization level of new energy was also improving. In the first half of the year, the utilization rates of wind and photovoltaic power were 96.1% and 97.9%, respectively, an increase of 0.8 and 0.3 percentage points year-on-year. The report from the National New Energy Consumption Monitoring and Warning Center shows that with the continuous promotion of resumption of work and production, the growth rate of wind power and photovoltaic installation in the second quarter has significantly rebounded. Among them, wind power added 4.28 million kilowatts of installed capacity, a year-on-year increase of 12.3%, and the growth rate increased by 61.2 percentage points compared to the previous quarter; The newly installed photovoltaic capacity was 7.55 million kilowatts, a year-on-year increase of 12.9%, with a growth rate increase of 36.9 percentage points compared to the previous quarter. Meanwhile, the layout of wind and photovoltaic development continues to be optimized. The installed capacity of wind power in the central and southern regions accounted for 30.8% of the national installed capacity, an increase of 1.7 percentage points year-on-year; The proportion of distributed photovoltaic installed capacity in China to the total photovoltaic installed capacity is 31.1%, an increase of 1.5 percentage points year-on-year. The report predicts that the new installed capacity of wind power is expected to maintain stable growth in the third quarter; In the second half of the year, there is a high demand for centralized grid connection of photovoltaics, and the growth rate of installed capacity is expected to accelerate in the third quarter. In terms of consumption, the growth rate of electricity consumption in the whole society is expected to accelerate in the third quarter, and the overall adequacy of new energy consumption space will be further improved. (Source: People's Daily)

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