Monthly Archives: March 2025

　　The main factors affecting the price of marine diesel generators include the following aspects. I hope the following introduction can bring reference to users.In the eyes of peers, Gasoline vehicle generator It has good qualities that people covet, and it also has many loyal fans that people envy. https://usrpower.com/product-category/vehicle-generators/gasoline-vehicle-generator-car-generators/

　　First, the power affects the price of marine diesel generators

　　Power is one of the main factors affecting the price of diesel generators. The power demand of marine diesel generators is usually large to meet the power demand of ships. The greater the power, it means that the manufacturing difficulty, material cost and technical content of the generator set may increase, which will lead to the price increase.

　　Second, the brand and configuration affect the price of marine diesel generators

　　Brand: The prices of different brands of marine diesel generators are quite different. Brands usually have good technology, more reliable quality and better after-sales service, so the price is relatively high. Although some brands have lower prices, they may have shortcomings in quality, performance and after-sales service.

　　Configuration: The configuration of marine diesel generator will also affect its price. Configuration may include better control system, better combustion system, better emission treatment device, etc., which will increase the cost of the generator.

　　Third, the quality and technical level

　　Quality: The quality of diesel generator is an important factor affecting its price. Good quality diesel generators have longer service life and lower maintenance cost, so their prices are higher. On the contrary, inferior diesel generators have short service life, high failure rate and higher overall cost, although their prices are lower.

　　Technical level: The technical level will also affect the price of marine diesel generators. Technology usually means higher manufacturing costs and better performance.

　　Iv. market demand and supply

　　Market demand and supply will also have an impact on the price of marine diesel generators. When the market demand exceeds the supply, the price may rise; Conversely, when the supply exceeds the demand, the price may fall. In addition, the intensity of market competition will also affect the price level.

　　V. Other factors

　　In addition to the above main factors, there are other factors that may also affect the price of marine diesel generators, such as fluctuations in raw material prices, rising labor costs, and increased transportation costs. Although these factors are not the main factors that determine the price, they will also have a certain impact on the price.

　　To sum up, the price of marine diesel generators is influenced by many factors, including power, brand and configuration, quality and technical level, market demand and supply and other factors. When purchasing, it is suggested to make comprehensive consideration and selection according to actual demand, budget and brand reputation.

　　When marine diesel generator sets are used in different seasons, the following aspects should be paid attention to to to ensure their stable operation and prolong their service time:Under people’s attention boat generator Finally grow into what people need, born for the market and come for the demand. https://usrpower.com/product/usr-pgm-marine-generator-jec60-6kva/

　　A, marine diesel generator set preparation before the season.

　　Sanitary cleaning of marine diesel generator set;

　　Remove the insulation blanket (if applicable) and thoroughly clean the generator set, including cleaning up dirt, sundries, grease, etc.

　　In the process of cleaning, pay attention to check loose nuts, rivets and appearance defects, and replace and repair them in time.

　　Check and change the oil:

　　According to the requirements of the instruction manual of the generator set, select the engine oil suitable for the current season.

　　Drain the old oil and replace it with new oil and oil filter.

　　Check and replace the third filter of marine diesel generator set;

　　Air filter, diesel filter and oil filter (referred to as “three filters” for short) are important parts of the generator set and need to be inspected and replaced regularly.

　　Paper filter may not fully recover its performance after cleaning, so it is recommended to replace it with a new one. Metal filter screen and filter element can be cleaned with clean oil, brush or air cylinder, but not with fire.

　　Check the cooling system:

　　Check the level and quality of coolant and replace it if necessary.

　　Clean the scale and sediment in the cooling system to ensure good cooling effect.

　　Second, the marine diesel generator set in season when the operation of the matters needing attention

　　Adjust the oil indicator:

　　For diesel engines equipped with “winter and summer” rotation indicators, the arrow of the indicator should be rotated to the word “summer” to realize large oil circulation, so as to reduce the pressure drop and parts wear caused by excessive oil temperature.

　　Use the right fuel:

　　According to the seasonal changes, choose the fuel suitable for the current temperature. When the temperature is high in summer, low viscosity fuel such as No.0 diesel can be used to reduce fuel consumption and carbon deposition.

　　Start and run the check:

　　Before starting the marine diesel generator set, check whether the liquid levels of fuel, lubricating oil and coolant are normal.

　　After start-up, observe the operating conditions of the generator set, such as whether the parameters such as voltage, frequency, oil temperature and water temperature are within the normal range.

　　If any abnormality is found, stop the machine immediately to check and troubleshoot.

　　Three, marine diesel generator set after the season maintenance.

　　Regular inspection and maintenance:

　　According to the usage of the generator set, check and maintain the plan regularly.

　　Check whether cables and connectors are fastened and reliable, check brushes and carbon deposits, and make necessary cleaning and replacement.

　　Storage management:

　　If the generator is not used for a long time, it should be stored in a dry, ventilated and dust-free environment to avoid direct sunlight and humidity.

　　Close the fuel valve and cooling water valve, remove the battery and keep it properly.

　　Recording and feedback:

　　Record the usage and maintenance records of the generator set, so as to find and solve problems in time.

　　If the generator set is found to be faulty or abnormal, it should be stopped in time and seek the help of professionals.

　　To sum up, marine diesel generator sets need to pay attention to many aspects when they are used in different seasons, including preparations before changing seasons, operational precautions during changing seasons and maintenance after changing seasons. Through inspection and maintenance, it can be ensured that the generator set can run stably and reliably in an emergency.

　　Flexible circuits, also known globally as flex circuits, flexible printed circuit boards, flex print, or flexi-circuits, are part of the electronic and interconnection family. They consist of a thin insulating polymer film with conductive circuit patterns affixed to it, usually coated with a thin polymer for protection.So, I believe PCB meaning In the future, it will be promising to create a miracle belonging to the industry. https://www.wellcircuits.com/

　　The technology has been used for interconnecting electronic devices since the 1950s and is now a crucial interconnection technology in many advanced electronic products today.

　　pick-and-place-2.jpg

　　Size and Weight Reduction Benefits of Flexible Circuitry

　　Wiring solutions that fit where rigid boards cannot.

　　Thin, lightweight products that are durable.

　　Miniaturized versions of existing technologies.

　　Three-dimensional packaging geometry.

　　A low number of device interconnects.

　　Shock and vibration resistance.

　　These benefits highlight flexible circuitry as an ideal solution for mobile consumer electronics. Inside modern devices like smartphones and laptops, flexible circuitry plays a critical role.

　　In mobile devices, using rigid circuitry would result in devices that are too large, heavy, and fragile to carry conveniently, exemplified by the Osborne I, the first fully powered mobile computer, weighing an intimidating 24.5 pounds. Size and weight reduction is only part of the flexible circuit story; they are also ideal for high-temperature and high-density applications.

　　High Temperature and High-Density Applications

　　Flex circuits, often made of polyimide or similar polymers, dissipate heat better than most rigid circuit board materials. This feature allows flexible circuits to be placed in locations where heat would impact the performance of rigid circuit boards.

　　Flexible circuit boards can withstand extreme temperatures ranging from -200＜C to 400＜C, making them desirable for borehole measurements in the oil and gas industry and preferred in industrial sensor technologies for their small size and durability.

　　High temperature resistance, combined with chemical resistance, excellent resistance to radiation and UV exposure, and the ability to control impedances in high-density designs, makes flexible circuits highly beneficial for manufacturers.

　　Why Not Make All Circuit Boards Flexible?

　　Flexible circuit boards are certainly useful, but they are not going to replace rigid circuit boards for all applications. Cost efficiency is the main obstacle to implementing an exclusively flexible circuit board design in a consumer product. Rigid circuit boards are less expensive to manufacture and install in a typical automated high-volume fabricating facility.

　　Typically, the ideal solution for an innovative product is one that incorporates flexible circuitry when necessary, and employs solid, reliable rigid circuit boards where possible to keep manufacturing and assembly costs down.

　　Among all metal core PCBs, aluminum PCBs are the most common type. The base material consists of an aluminum core with standard FR4. It features a thermal clad layer that dissipates heat efficiently, cooling components and enhancing the overall performance of the products. Currently, aluminum-backed PCBs are considered the solution for high-power and tight tolerance applications.Not only does it perform well in data, PCB manufacturing in China In the market share, it is also gradually expanding, so that more people can benefit. https://www.wellcircuits.com/

　　aluminum PCB

　　Advantages of Aluminum PCB

　　Environmentally Friendly: Aluminum is non-toxic and recyclable. Manufacturing with aluminum also conserves energy due to its ease of assembly. For PCB suppliers, using this metal helps maintain the health of our planet.

　　Heat Dissipation: High temperatures can severely damage electronics, so using a material that can dissipate heat is essential. Aluminum transfers heat away from vital components, minimizing potential damage to the circuit board.

　　Higher Durability: Aluminum provides greater strength and durability than ceramic or fiberglass bases. It reduces the risk of breakage during manufacturing, handling, and everyday use.

　　Lightweight: Despite its strength, aluminum is a surprisingly lightweight metal. It adds durability and resilience without increasing the weight of the product.

　　Applications of Aluminum PCB

　　Audio Devices: Input/output amplifiers, balanced amplifiers, audio amplifiers, pre-amplifiers, and power amplifiers.

　　Power Supply: Switching regulators, DC/AC converters, and SW regulators.

　　Communication Electronics: High-frequency amplifiers, filtering appliances, and transmitter circuits.

　　Office Automation Equipment: Motor drives, etc.

　　Automobile: Electronic regulators, ignition systems, power supply controllers, etc.

　　Computers: CPU boards, floppy disk drives, power supply devices, etc.

　　Power Modules: Inverters, solid-state relays, rectifier bridges.

　　Lamps and Lighting: With the growing promotion of energy-saving lamps, various energy-efficient LED lights are well-received in the market, and aluminum PCBs are increasingly used in LED lighting applications.

　　aluminum PCB application

　　If you have any questions regarding PCB and PCBA, please feel free to contact me at

　　The typical depth of the V-cut is 3/4 of the board¨s thickness. If you plan to use V-cuts, we recommend maintaining a safe distance from the V-cut line to any traces. Please consider this when designing your panels.In the past ten years, PCB meaning Defeated many competitors, courageously advanced in the struggle, and polished many good products for customers. https://www.wellcircuits.com/

　　V-cut example 1

　　V-cut Example 1

　　V-cut example 2

　　V-cut Example 2

　　V-cut example 3

　　V-cut Example 3

　　V-Cut Machine

¡¡¡¡Last year, WellCircuits hosted the First PCB Design Contest. Kevin Ceresa was one of the participants, and his entry, the Audio Amplifier 60W, won second prize for Best Design. We are honored to have the opportunity to interview this passionate advocate of Open Source Hardware and electronics.Therefore, we should understand PCB meaning Many benefits, absorb and summarize, and use them. https://www.wellcircuits.com/

¡¡¡¡

¡¡¡¡Kevin Ceresa Interview Image

¡¡¡¡

¡¡¡¡WellCircuits Team: ¡°Hello Kevin, congratulations once again and thank you for agreeing to this interview.¡±

¡¡¡¡

¡¡¡¡Kevin: ¡°Thank you, it¡¯s truly an honor.¡±

¡¡¡¡

¡¡¡¡WellCircuits Team: ¡°Could you please introduce yourself briefly? Many other engineers in the WellCircuits community are eager to learn more about you.¡±

¡¡¡¡

¡¡¡¡Kevin: ¡°Sure! I am an electronic engineering student and began my career at 16 years old. I have worked on various electronic projects that gave me valuable experience, and I am still involved in a few startup projects.¡±

¡¡¡¡

¡¡¡¡WellCircuits Team: ¡°I visited your website, Swiss TI Lab, which was co-founded by you and Daniele Chiappa. Can you tell us more about your lab and the story behind its establishment?¡±

¡¡¡¡

¡¡¡¡Kevin: ¡°We decided to start the company after our first project launched on Kickstarter. After the initial phase, we continued to design electronic products for both companies and private clients.¡±

¡¡¡¡

¡¡¡¡WellCircuits Team: ¡°Regarding the 2017 WellCircuits PCB Design Contest, how did you learn about the competition, and what motivated you to participate?¡±

¡¡¡¡

¡¡¡¡Kevin: ¡°As a WellCircuits customer, I found a post about the contest on their Facebook page. I joined to challenge myself and thought one of my designs could be a good fit for the competition.¡±

¡¡¡¡

¡¡¡¡WellCircuits Team: ¡°Why did you choose your Audio Amplifier 60W project as your contest entry? And how did it feel when you learned that you were one of the winners?¡±

¡¡¡¡

¡¡¡¡Kevin: ¡°I initially built the amplifier to enhance my skills with the PCB design software I was using, after completing an advanced course. I chose it as my contest entry because it was one of my best designs on a 2-layer PCB and the most practical project for the community. When I found out I won, I was thrilled ¡ª I didn¡¯t expect to win at all.¡±

¡¡¡¡

¡¡¡¡WellCircuits Team: ¡°What do you think is the most important quality for a good designer?¡±

¡¡¡¡

¡¡¡¡Kevin: ¡°Experience is crucial when designing electronic projects. It helps you avoid mistakes during schematic design and layout, significantly reducing the time needed to complete the project.¡±

¡¡¡¡

¡¡¡¡WellCircuits Team: ¡°How do you see the future of open-source hardware?¡±

¡¡¡¡

¡¡¡¡Kevin: ¡°With the advancement of technology and decreasing costs of electronics, more people can leverage community knowledge to build anything. I believe WellCircuits plays a significant role in this evolution.¡±

¡¡¡¡

¡¡¡¡WellCircuits Team: ¡°Thanks! What are your thoughts on our website and community? Do you have any suggestions for improvement?¡±

¡¡¡¡

¡¡¡¡Kevin: ¡°I think the website is well-designed, though it lacks translations into other languages. I¡¯ve ordered many PCBs from you, and I¡¯ve never had any issues. However, I don¡¯t use the community forum much.¡±

¡¡¡¡

¡¡¡¡WellCircuits Team: ¡°Thank you for your feedback. Our Spanish website is now available, and we are also working on Russian and Japanese versions. One last question: If we hold another PCB Design Contest, would you participate again, and would you encourage your friends to join as well?¡±

¡¡¡¡

¡¡¡¡Kevin: ¡°I will definitely participate again. I¡¯ve already suggested the contest to my friends, and I¡¯ll remind them to join if the competition is held again.¡±

¡¡¡¡

¡¡¡¡WellCircuits Team: ¡°That¡¯s all. Thank you once again, Kevin. We wish you all the best!¡±

　　The image above is from the crowdfunding project ＾Neosegment Digit￣ by Maks Surguy on Crowd Supply. The project has gained significant attention, raising a total of $6,500. We are proud to support Maks in assembling this project.beyond doubt FLEX PCB It will definitely lead the development direction of the whole industry and let its light bloom in this field. https://www.wellcircuits.com/

　　Wellcircuits has also assisted creators with the assembly of the following projects on Crowd Supply:

　　ALio Proto Board: The All-in-One Prototyping Board

　　Neosegment Digit

　　Paperino

　　Crowd Supply is a popular crowdfunding platform based in Portland, Oregon, known for supporting creators in bringing innovative and useful hardware to life. Their mission is to provide the necessary funding and resources to help creators deliver high-quality products to their backers.

　　We first met at the 2017 Open Source Hardware Summit, where we discussed the potential for future collaboration. Both of our goals are aligned in helping enthusiasts bring their projects to life. Today, we are excited to announce our partnership:

　　Any successful crowdfunding project on Crowd Supply is eligible for a 10% discount (up to $300) on PCB assembly services at Wellcircuits. You can also apply for a coupon code for your backers. Simply send your project link to anson@wellcircuits.com to receive your discount.

　　As a professional PCB production and assembly company, Wellcircuits has earned a strong reputation among engineers worldwide. This partnership will leverage our strengths to ensure smooth execution for crowdfunding projects. All of our components are original, and we guarantee on-time delivery, ensuring your supporters receive their products as quickly as possible. Additionally, you can count on excellent after-sales service at Wellcircuits.

　　Let¨s create something amazing together!

　　What is High Frequency (HF) PCB?The industry believes that, FLEX PCB The development of our company marks the rapid and steady progress of the whole industry. https://www.wellcircuits.com/

　　High Frequency PCB

　　In today¨s technological landscape, high-frequency electronic devices are becoming increasingly essential, particularly in wireless networks. The rapid growth of satellite communications and the shift toward high-speed, high-frequency information products demand the use of high-frequency substrates. Devices like satellite systems, mobile phone base stations, and other communication products require high-frequency PCBs for optimal performance.

　　Key Features of High Frequency PCBs

　　High Frequency PCB Features

　　The dielectric constant (DK) should be small and stable, with lower values minimizing signal delay.

　　The dissipation factor (DF) should also be low to ensure high-quality signal transmission, reducing signal loss.

　　Thermal expansion properties should be matched with the copper foil to prevent separation due to temperature variations.

　　Water absorption must be low, as higher absorption can negatively impact the dielectric constant (DK) and dissipation factor (DF) in humid environments.

　　The material must exhibit excellent heat resistance, chemical resistance, impact endurance, and peel strength.

　　Materials Used in High-Frequency Circuit Boards

　　Materials for High Frequency PCBs

　　High-frequency PCBs for wireless applications and high-speed data transmission, especially those in the GHz range, require specific material properties:

　　Adapted permittivity (dielectric constant).

　　Low attenuation to ensure efficient signal transmission.

　　Homogeneous construction with low tolerances in insulation thickness and dielectric constant.

　　Typically, high-frequency is defined as frequencies above 1 GHz. Currently, PTFE (polytetrafluoroethylene), commonly known as Teflon, is widely used for high-frequency PCBs, especially those operating above 5 GHz. FR4 and PPO substrates are commonly used for frequencies between 1 GHz and 10 GHz. The differences between these materials are as follows:

　　Regarding laminate cost, FR4 is the least expensive, while Teflon is the most costly. In terms of dielectric constant (DK), dissipation factor (DF), water absorption, and frequency characteristics, Teflon outperforms the other substrates. For applications requiring frequencies above 10 GHz, Teflon is the optimal choice, despite its higher cost and poorer heat resistance properties. To enhance the thermal and mechanical properties of PTFE, fillers like SiO2 or fiberglass are added. Additionally, because PTFE has molecular inertia and doesn¨t easily bond with copper foil, special surface treatments (such as chemical or plasma etching) are used to improve adhesion, though these may affect the dielectric performance.

　　Among all metal core PCBs, aluminum PCBs are the most common type. The base material consists of an aluminum core with standard FR4. It features a thermal clad layer that dissipates heat efficiently, cooling components and enhancing the overall performance of the products. Currently, aluminum-backed PCBs are considered the solution for high-power and tight tolerance applications.Down-to-earth right PCB manufacturing in China In-depth research is the only way to pursue development. https://www.wellcircuits.com/

　　aluminum PCB

　　Advantages of Aluminum PCB

　　Environmentally Friendly: Aluminum is non-toxic and recyclable. Manufacturing with aluminum also conserves energy due to its ease of assembly. For PCB suppliers, using this metal helps maintain the health of our planet.

　　Heat Dissipation: High temperatures can severely damage electronics, so using a material that can dissipate heat is essential. Aluminum transfers heat away from vital components, minimizing potential damage to the circuit board.

　　Higher Durability: Aluminum provides greater strength and durability than ceramic or fiberglass bases. It reduces the risk of breakage during manufacturing, handling, and everyday use.

　　Lightweight: Despite its strength, aluminum is a surprisingly lightweight metal. It adds durability and resilience without increasing the weight of the product.

　　Applications of Aluminum PCB

　　Audio Devices: Input/output amplifiers, balanced amplifiers, audio amplifiers, pre-amplifiers, and power amplifiers.

　　Power Supply: Switching regulators, DC/AC converters, and SW regulators.

　　Communication Electronics: High-frequency amplifiers, filtering appliances, and transmitter circuits.

　　Office Automation Equipment: Motor drives, etc.

　　Automobile: Electronic regulators, ignition systems, power supply controllers, etc.

　　Computers: CPU boards, floppy disk drives, power supply devices, etc.

　　Power Modules: Inverters, solid-state relays, rectifier bridges.

　　Lamps and Lighting: With the growing promotion of energy-saving lamps, various energy-efficient LED lights are well-received in the market, and aluminum PCBs are increasingly used in LED lighting applications.

　　aluminum PCB application

　　If you have any questions regarding PCB and PCBA, please feel free to contact me at

　　Whether in cold winter or hot summer, air conditioning is an essential household appliance in our home, especially now that people’s living standards have improved, air conditioning has entered thousands of households. Many owners think that choosing air conditioning is the most important thing. I don’t know if it is familiar, but the placement of air conditioning is even more difficult. If it is not in the right position, it will bring trouble to our lives. Many people don’t know the secret of air conditioning placement. Come and have a look with Xiaobian.more importantly, split system air conditioning and heating Made a fighter in the product, not afraid of any competitor’s attack. https://puremind.com/product-category/puremind-air-conditioner/split-air-conditioner/

　　Where is the most correct place for air conditioning? Many people don’t know the secret of air conditioning ~!

　　Where are the air conditioners placed?

　　(1) How to place the air conditioner in the living room?

　　1. Air-conditioning is a kind of fast-running electrical appliance, so it will transfer the air flow from the outside to the home, such as the main disease in the southwest. Therefore, if the air-conditioning at home is placed in this position, it will definitely make the family suffer from illness and illness this year. Correction method: use a small fan to change the wind direction opposite the air conditioner. In addition, if you want to strengthen the above fortune, you can also move the air conditioner to this position, which has a strong effect on luck and transshipment.

　　2. The most taboo of the air conditioner outlet is to blow to the financial position, and take away the wealth at home together with the cold wind, and the door at home is the main wealth. Therefore, if the air conditioner directly faces the door, it will not only drain the wealth, but also symbolize the popularity. It means that the home is not warm. Correction method: hang a glass screen or cloth curtain at the entrance to solve it.

　　3. The air outlet of the air conditioner directly blows the main chair in the living room (that is, the sofa where three people sit), so that the face sitting here is blown very uncomfortable, which means that the backer is unstable and affects the work and career fortune. Correction: Let the air outlet of the air conditioner come from the side, or move the position of the main sofa.

　　Where is the most correct place for air conditioning? Many people don’t know the secret of air conditioning ~!

　　(2) How to place the air conditioner in the bedroom?

　　1. Air-conditioning often emits a certain amount of heat during refrigeration, so it must be installed far away from other electrical appliances and avoid being installed in corners, which can make the air-conditioning dissipate heat as soon as possible, ensure that it is not damaged, and prolong its service life.

　　2. The air conditioner is installed at a certain distance from the bed. If it is facing the bed or too close to the bed, it will easily lead to the user catching a cold or catching a cold, which will adversely affect people’s health. Therefore, everyone needs to pay special attention to this when installing the air conditioner.

　　Where is the most correct place for air conditioning? Many people don’t know the secret of air conditioning ~!

　　3. Air conditioning is installed in the bedroom in the northeast direction, because the radiation in this direction will be relatively small, so that the harm to the human body can be reduced to. In real life, many owners will ignore this problem, which is actually a very serious misunderstanding.

　　4. The height of the air conditioner installed in the bedroom is very elegant. It is not appropriate to be too high or too low. It is recommended that it be higher than one meter and lower than two meters. This height is the most suitable, and its use effect will be in a new state, and it is more convenient for daily use.

　　Where is the most correct place for air conditioning? Many people don’t know the secret of air conditioning ~!

　　What are the precautions for air conditioning placement?

　　1, kitchen air conditioning moving stove fire

　　It is the place where the whole family can fill their stomachs without installing a kitchen stove. If the air conditioner directly touches the stove fire, it will make the stove fire weak, which will damage the energy of the food in cooking, thus affecting the health of the occupants. In addition, the stove fire is also representative, so it has a great influence on the couple’s sexual life. Try not to install air conditioning in the kitchen, but if you must, try to blow the wind towards the ceiling or sideways.

　　2, the dining room air conditioning dirty food

　　Blowing the dining table directly is a big no-no, it will inevitably accumulate dust if the air conditioner blows the dining table directly, so it is very likely that the dust will fall into the hot food with the wind, and of course it is easier to cool the delicious meals on the table. Theoretically speaking, eating “dirty rice and cold dishes” for a long time will lead to the hidden worry of being defeated, so the air conditioner in the dining room should not be above or near the dining table.

　　Where is the most correct place for air conditioning? Many people don’t know the secret of air conditioning ~!

　　3, bedroom air conditioning to prevent discomfort

　　When people who use the air conditioner evenly to eliminate evil spirits sleep, the pores are wide open and the respiratory system is relatively unguarded. Therefore, if the air conditioner blows directly on the human body, it will not only make the body uncomfortable and catch a cold, but also attract evil spirits more easily. Therefore, the air outlet will be raised upwards, or the windows in the room will be slightly opened to even the cold air coming straight.

　　4. Air conditioning in the study transports energy

　　Wenchang’s good luck comes to the air conditioner to make people cool, so it has the function of condensing thinking and improving reading concentration. If the air conditioner in the study can be moved to the north and the energy of air conditioning operation can be used, it will drive Wenchang’s good luck and be beneficial to candidates or people who study knowledge. Of course, remember not to blow the air outlet toward your face or head, lest your head be unbearable before you finish reading the book.

　　Xiaobian will introduce the relevant information about the placement of air conditioners here for everyone. The placement of air conditioners directly affects our daily life and fortune. If you are also worried about the placement of air conditioners, you may wish to refer to the suggestions in the article and choose the optimal scheme, so as to feel the comfort brought by air conditioners to a certain extent without affecting human health. I hope that the knowledge summarized by Xiaobian can bring you help.