With the rapid development of science and technology, electronic products have penetrated into all aspects of our daily life. The AC/DC power adapter, as an important part of these electronic products, its safety and durability have been a concern. In many usage environments, waterproof performance is an aspect that both consumers and manufacturers pay much attention to. So, do power adapters have a waterproof function?  

AC/DC power adapters are a type of power supply used to charge phones, laptops, and other electronic devices. The "CE" mark is a safety certification mark and is regarded as the manufacturer's passport to open and enter the European market. CE stands for Compliant Europe. In the European Union market, the "CE" mark is a mandatory certification mark. Products made by enterprises within the EU or in other countries must bear the "CE" mark if they are to circulate freely in the EU market, to show that the product meets the basic requirements of the EU Directive on the New Method of Technical Harmonisation and Standardization. This is a mandatory requirement for products under EU law.     The power adapters are subject to several regulations in the European Union, including the Low Voltage Directive, the EMC Directive, and Regulation (EU) 2019/1782, which is an implementing measure under the Ecodesign Directive. The CE EMC instruction covers all live products with circuit boards that generate electromagnetic radiation. Adapters exported to the EU must be CE certified under the EMC+LVD Directive. Here are some information about the regulations. Low Voltage Directive (LVD) The Low Voltage Directive (LVD) sets safety requirements for importers and manufacturers of electronics and electrical devices that

Any electronic device marketed or sold in the US must have Federal Communications Commission (FCC) approval. What is FCC, you may ask? Power adapter FCC certification is a mandatory electromagnetic compatibility (EMC) certification implemented by the Federal Communications Commission (FCC) for power adapter products. And the Federal Communications Commission (FCC) is an independent government agency, overseen by the U.S. Congress, responsible for implementing communication laws and regulations throughout America as well as enforcing them. FCC certification is designed to ensure that electronic products do not cause harmful interference to radio communications under normal working conditions, while protecting users from potential electromagnetic radiation hazards from these products. For manufacturers and suppliers who want to export power adapter, battery charger, power supply and other electronic products to the US market, obtaining FCC certification is a necessary condition for entering the market.

LED strips are not as simple as traditional incandescent light bulbs when it comes to installation and set up. Because the strip lights utilize energy efficient, and low-heat 12 volt Direct Current (DC) power, which is unfortunately not what most homes are wired with. That means you'll need to use LED power supply if you want to use LED strip lights, all equipment that provides electrical energy to the light strip is collectively referred to as an LED power supply, some people also call it an LED driver because it drives the led strip to work. So choosing a correct power supply is very important. The appropriate power supply can not only provide stable voltage and current, but also ensure the normal operation of the light strip and extend its life. When choosing a power supply suitable for the light strip, the following points need to be considered: The first step is to figure out what the voltage of the LED strip is. The majority of LED strips available on the market run at 12V DC. Others are primarily at 24V DC. Power supply device converts 120V/240V AC (depending on your location) into the voltage signal that LED strips can use, like 12V or 24V. The output voltage of the led driver is generally 12VDC or 24VDC. So when choosing a power adapter, you must ensure that its output voltage fully matches the requirements of the light strip.

Power adapters provide necessary power for various electronic equipment and ensure the safety and performance of the devices. Its quality and safety are directly related to the user's experience and personal safety. Therefore, its quality and safety are directly related to the user's experience and personal safety. According to Chinese laws and regulations, products related to electrical safety, including AC/DC power adapters, must undergo 3C certification before they can be legally sold and used.   What is CCC? In the field of product certifications, the abbreviation CCC ( also often called 3C certificate ) stands for China Compulsory Certificate. Power adapters must have a CCC certificate before they can be legally sold in China. It is a mandatory certification in China. The CCC certification is comparable to other certifications for the standardization of product quality and safety, such as the European CE system. Some requirements for power adapter 3C certification Security requirements. The 3C certification standard has strict requirements on the appearance structure, insulation performance, grounding, etc. of the power adapter to ensure that the product does not pose any threat to user safety during normal use. EMC requirements

The power adapter accelerated aging test is a method that used to simulate the aging effects on power adapters by applying increased stress conditions such as higher temperature and voltage to predict performance degradation and design failure over an extended period in a shorter time frame. It simulates the aging of the product under various factors involved in actual use conditions and creates corresponding conditions to strengthen the experiment process, thereby shortening the test time. Through a short test, you can know the degree of the product's aging equivalent to several years of use. This test is designed to identify potential issues with the product in advance, allowing for improvements and adjustments before it is officially launched. Accelerated aging testing can help us understand the reliability, durability and performance stability of the product.   Tools for aging test: The aging cabinet This test equipment mainly used to simulate a high temperature and harsh environment test equipment for high-performance electronic products, such as automotive electronic products, power supplies, monitors, exchangeable chargers, etc. This equipment is crucial for enhancing product stability and reliability. In addition, it is an important experimental step to improve product stability and reliability, and an important production process to improve product quality and competitiveness. Moreover, it can configure the main system, main power system, control system, temperature control system, time control system, etc. according to different requirements. This test program can detect defective products or defective parts. It is an effective means to quickly find and solve problems, and fully improve production efficiency and product quality.  

We run every power supply through burn-in testing before it ships. Why? To make sure it stays stable and reliable when you're using it. Simulate real-world application environments by subjecting the power supply to continuous full-load operation to assess its ability to maintain stable output over extended periods.

  In-depth Insights into Foreign Trade Concepts & Current Status: Canton Fair Participation Preview Corechen Focuses on Six Major Trends of the Canton Fair, Taking a Key Step in Its Foreign Trade Strategy The Canton Fair is a critical global platform focusing on Made in China, where advanced technologies emerge rapidly. As the barometer of China’s foreign trade, it shows development trends for all industries. Six major trends are now clear: Green, Intelligent, High-End, Market Diversification, Supply Chain Restructuring, Branding. These are both opportunities and filters. Seeing the long-term trend is crucial for enterprise development. Trend 1: Green & Low-Carbon Green environmental protection has become a global trade passport. Products with green patents and environmental certificates are highly popular in global trade. New energy and energy-saving equipment are booming, and green-integrated products have stronger advantages. Trend 2: Smart AI Infiltration AI is deeply integrated into all industries, driving growing demand for smart devices. Intelligent power supplies and industrial power equipment will see increased demand, marking a key moment for the electronics industry. Trend 3: Product High-End Upgrade Low-price competition is fading. High-end mechanical and electrical products have become export main forces. Matching power supplies and energy storage products gain new opportunities. Trend 4: Global Market Diversification The Belt and Road markets are growing rapidly, and traditional European and American markets are recovering. Buyers nee

Establish Enterprise with Technology, Base on Quality, Uphold Integrity, Achieve Long-term Development through Diligence Recently, Kelic has been steadily engaged in product R&D, and has achieved further progress in market promotion. The company still adheres to its core values: establish enterprise with technology, base on quality, uphold integrity, and achieve long-term development through diligence. It takes technological innovation as the foundation of development, product quality as the lifeline, and honest cooperation as the principle of conduct. Down-to-earth and striving for excellence, Kelic provides customers with more stable, reliable and valuable solutions. In terms of scientific research, Kelic continues to take it as the core and invests the company's main efforts in R&D. This is to continuously verify Kelic's core concept of optimization and innovation, and moreover, to enable customers to experience better technological products from Kelic. The philosophy of "technology first, quality foremost" is also reflected in many work details of Kelic. Enhancing technological strength means enhancing the core competitiveness of products. Increasing R&D investment continuously and keeping up with technological trends is always the best reflection of serving every customer with sincerity. Kelic's development is not only reflected in the key scientific research sector, but also in its market expansion and customer service. While growing continuously, Kelic has always adhered to the cooperative concept of win-win through integrity and long-term collaboration. Ke

Keeping Pace with the AI Era: Kelic's Forward March In the contemporary era characterized by the rapid iteration and robust development of artificial intelligence (AI) technology, its influence has permeated every facet of people's lives. It not only offers convenient and efficient living experiences to the public but also propels the innovation and upgrading of production models across various industries, rendering efficient, precise, and intelligent production methods the norm. As a professional enterprise with 13 years of profound engagement in the power supply domain, Kelic has consistently concentrated on the research, development, and production of adapters, switching power supplies, LED power supplies, and industrial power supplies. Amid the AI wave, it not only fully reaps the technological dividends but also integrates AI empowerment into every link of research, development, production, and customer service. This further deepens the core business philosophy of Integrity, Quality, and Innovation and responds to the trust and expectations of global customers with superior services and products. Confronted with the development opportunities presented by AI, Kelic proactively embraces change and deeply applies AI technology to the entire operational process, making convenience and efficiency a new impetus for enterprise development. In the pre-sales service link of power supplies, the "human-machine collaboration" model has significantly enhanced sales efficiency. By leveraging AI technology to optimize cross-language communication exper

Kelicheng Power Supply Technology CO,. LTD. and Guangdong Zhanshen Heli Electrical Appliances Co,. Ltd. will attend Aquatech china 2025. Nov.5th to Nov.7th. Shanghai New International Expo Center.The two companies are gonna bring power adapters and water pumps to the exhibition. The primary focus is on showcasing its collaborative solutions in the field of water treatment equipment—the precise compatibility between the 36V4A adapter and the 1000-gallon commercial water pump.Providing efficient and stable power supply and pump-valve combinations for downstream equipment such as water purifiers and RO systems.   Kelicheng Power Supply Technology CO,. LTD.: Professional manufacturer of water treatment power adapters.   Foshan Shunde Kericheng Power Supply Technology Co., Ltd. was established in 2013 and is a high-tech enterprise specializing in the research and production of power adapter modules for water treatment equipment.The company primarily catering to the power supply needs in the fields of home appliances, water purification systems, and small household electrical devices.   At this exhibition, Kericheng focused on showcasing its range of power adapter series specifically designed for water treatment equipment. The 36V4A model is the flagship product for large-flow commercial water purification units. This adapter employs an innovative inter

Kelicheng Power Supply Technology CO,. LTD is attending Vietnam（Hanoi）International Electronics & Smart Appliances Expo in Hanoi International Exhibition Center (ICE) 91 Tran Hung Dao St., Hoan Kiem Dist., Hanoi, Vietnam in Oct. 30th to Nov.1st. This exhibition brought together over 400+ manufactures from China. It covers all sectors within the consumer electronics and home appliances industry, such as digital cameras, headphones, speakers, and other consumer electronics; computer and gaming peripherals: personal computers, tablets, power adapters, etc.; mobile electronics and smartphone peripherals, such as smartphones and power adapters; smart wearables like smartwatches and smart bracelets; smart home appliances like coffee makers, rice cookers, and electric water heaters; battery and power supply components for electronic devices and parts.Attended by over 11812 professional viewers.Kelicheng will bring along many kinds of products: ac/dc adapter, Industrial Power Supply, Constant current power supply, etc. to the fair. Kelic will continue to provide outstanding power solution options for facilities that use electricity, such as water treatment systems, industrial equipment, and consumer electronics. We look forward to welcoming you at A1.H22.   Vietna

This page will concerns the ripple and noise of AC-DC power adapters or switching power supplies. It describes basic information on ripple and noise. What is ripple? Ripple and noise voltage is the alternating current voltage superimposed on the output voltage. Ripple is a phenomenon caused by voltage fluctuations in the DC stabilized power supply because the DC stabilized power supply is generally formed by the AC power supply through rectification, voltage regulation, filtering and other links. Due to incomplete filtering, residual AC components will inevitably be more or less in the DC stabilized amount with some AC components. This superimposed on the DC stabilized amount of the AC component is called ripple. The ripple component is more complex. Its form is generally higher than the frequency of the sine wave-like harmonics. Another is a very narrow width of the pulse wave. Generally, we see the ripple in the form of the following figure, a bit like a sawtooth wave. From this, we know that the switching power supply's output is not pure DC voltage. There are some AC components which are caused by ripple and noise. Ripple is the output DC voltage fluctuation and is related to the switching power supply's switching action. For each on/off process, the

Industrial power supplies are devices that are used to provide power to industrial equipment. Power supplies can be used to provide power to different electrical loads. So industrial power supplies are critical components in various industries, ensuring that machinery and equipment run smoothly. Without them, factories, manufacturing plants, and other industrial settings could experience downtime, inefficiencies, or even damage to valuable equipment.    So let's take a look what an industrial power supply is. The industrial power supply is a system that provides reliable and consistent electricity to industrial equipment. Its main job is to convert and regulate the incoming power to ensure it meets the specific needs of machinery, no matter how big or small. In simple terms, an industrial power supply takes the electricity from your wall outlet (which is AC power) and converts it into the kind of power that industrial machines need (which is often DC power). Think of it like a translator, making sure the electricity “speaks” the right language for your equipment. But they do more than just translate. Industrial power supplies also act as bodyguards, protecting expensive equipment from power surges, spikes, and other electrical hiccups that can cause damage or downtime.

Foshan Shunde Kelicheng Power

When you choose a power adapter for your electrical device, you better know what plug you need first. But there is more than one standard being used in the world. A different country may use different power cord types, different plugs, and connectors, especially the plug types. So today let’s learn about the two-pin plug first. Two-pin plug is a basic type of electrical plug. It has two pins: a hot pin and a neutral pin. These pins enable the plug to connect to a power source and create a circuit that will enable the operation of devices. The two-pin plug is ideal for smaller appliances. The hot pin connects to the hot slot of the receptacle, drawing current to power the load. The neutral pin connects to the neutral slot, returning the current to the receptacle and completing the circuit. These plugs can be easily inserted into two-slot receptacles. The two-pin plugs is not rewirable and must be supplied with a flexible cord. It can be inserted in either direction, so hot and neutral are connected arbitrarily. To improve contact with socket parts the plug has slightly flexible pins which converge toward their free ends. There are also polarized plugs. The polarized plugs feature a neutral pin that is wide

Kelicheng Power Supply Technology CO., LTD will attend WATERTECH 2025. From June 4 to June 6 (Beijing Time), the National Exhibition and Convention Center (Hongqiao) will host this expo that promises to showcase cutting-edge innovations and the latest water treatment technology. Exhibitors from around the globe will descend upon this venue, eager to display their state-of-the-art products and services. WATERTECH CHINA is the World’s largest trade show for water treatment and wastewater treatment technologies. It’s a hub for industry professionals and businesses, showcasing the latest advancements in the water treatment sector. More than 2459 exhibitors and 100000 visitors from all over the world in the field of water and wastewater treatment, membrane and water treatment, pipeline system, etc. attended. Kelic will bring along many kinds of products: ac/dc adapter, Industrial Power Supply, Battery Charger, etc. to the fair. Kelic will continue to deliver outstanding power supply solutions to global customers. We warmly welcome your visit to our booth during the event.   WATERTECH CHINA 2025 Booth No.: 1.1H1016 Dates: June 4 - June 6, 2025 Address: National Exhibition and Convention Center (NECC), Shanghai. CHINA  

Power adapters are widely used in various industries, such as water purifier, cash register, intelligent security, commercial display advertising machine, CCTV, scanner, LED etc. Different products have different requirements for the DC size of the power adapter. There are many standards for dc connectors. So today we’ll discuss part of them. The types of DC heads can be roughly divided into the following: Coaxial power connector 1.2.5*0.7 (outer diameter * inner diameter, the same below): referred to as dc2507, it is mainly used for small electronic products and mini electronic products with limited volume, such as tablet computers; At present, tablet computers of major brands are charged with micro usb interface. • OD – Outer diameter of the plug. • ID – Inner diameter of the plug. 2. 3.5*1.35 (dc35135): mainly used for network set-top box, USB hub external power supply, webcam, LED desk lamp, etc. 3. 4.0*1.7 (dc4017): mainly used for mobile DVD, EVD, PSP and some network set-top boxes.

Kelicheng Power Supply Technology CO., LTD will attend Vietnam International Electronics & Smart Appliances Expo 2025. From May 29 to 31(Beijing Time), the Saigon Exhibition and Convention Center will play host to this expo that promises to showcase cutting-edge innovations and the latest industry trends. Exhibitors from around the globe will descend upon this venue, eager to display their state-of-the-art products and services. As one of the largest consumer electronics professional exhibitions in Vietnam, the IEAE in Ho Chi Minh City has received strong support from local government and business institutions such as the Vietnamese Ministry of Foreign Trade, the Ministry of Industry, the Vietnam Chamber of Commerce and Industry, the Vietnam Electronic Industries Association, the Vietnam Retailers Association, and the Vietnam Lighting Association. The expo is a major trade promotion event that helps enterprises seek potential partners and expand markets. And it also provides a good opportunity for local manufacturers to embrace the latest technologies and trends in the industry to enhance production. More than 500 manufacturers from all over the world in the field of Consumer Electronics, Mobile Electronics and Accessories, Smart Wear, Electronics Accessories and Components attended. Kelic will bring along many kinds of products: ac/dc adapter, Industrial Power Supply, Battery Charger, etc. to the fair. Kelic will continue to deliver outstanding power supply solutions to global’s customers. Don’t miss out on this chance to witness the evolution of technology!

With the improvement of people’s living standards, they are paying more and more attention to their health. The clean and purified water is a basic necessity for good health. Then how to get clean and purified water? So the RO (reverse osmosis) system or water purifiers have become the necessary solution for ensuring safe drinking water at home. The main parts of the water purifier are the water pump, filter element, and power adapter. For these systems to function efficiently, a reliable and stable power supply or waterproof power adapter is essential. So, how to choose the

A power adapter is a device that converts alternating current into direct current, also known as an external power supply. Power adapters are an integral part of many electronic devices and are responsible for stable and reliable power supply. Despite their important role, power adapters are prone to wear and tear, resulting in a shortened lifespan. Here are some of the factors that can affect the lifespan of a ac/dc power adapter:  1.Ambient temperature. The operating environment plays a very important role in determining the lifespan of a power adapter. Engineers who want to ensure the long life of a ac/dc power adapter should also consider the maximum rated ambient temperature for the intended application. It should be taken into account that degradation can be accelerated if the power adapter is exposed to extreme temperature, humidity, dust and other environmental factors. Extreme heat or cold may affect the operation of the power adapter. High temperatures can cause thermal runaway, shortening equipment life and reducing component reliability, while low temperatures can have various effects on performance and product life. 2.Component quality. The quality of materials used in the manufacture of power adapters, such as capacitors, transformers, resistors and cables, affects the service life of power adapters. High-quality components can withstand more stress and work more efficiently over a longer period of time.  3. Load and usage patterns. The way the device is used directly affects the life of the ac/dc power adapter. Overloading the power adapter beyond its rated capacity can stress internal components, causing them to overheat and fail. To avoid overloading t

Kelicheng Power Supply Technology CO., LTD will attend The 2025 WATERTECH CHINA (GUANGDONG), which is co-sponsored by China Membrane Industry Association, China Instrument Industry Association, Shanghai Herui Exhibition Service (Group) Co., Ltd., and Informa Exhibition, co-organized by Shanghai Hexiang Exhibition Co., Ltd., and hosted by Qingdao Adea Desalination Center and equipment exhibition, which has been successfully held for eight times and is a major event in the spring water treatment industry in South China. The WATERTECH CHINA (GUANGDONG) 2025 will grandly open at the Guangzhou Poly World Trade Expo Center from March 5th to 7th( Beijing Time ). With an exhibition area of 36,000 square meters, it is expected to bring together 800+ high-quality exhibitors across the three major fields of municipal, industrial and civil use, displaying more than 20,000 products and attracting 20,000 professional visitors. The exhibition will gather brand companies in the fields of environmental water treatment, membrane and water treatment, and water purification. Also, Kelic will bring along many kinds of products: ac/dc adapter, industrial power supply, waterproof power adapter, etc to the fair.   WATERTECH CHINA(GUANGDONG) 2025   Dates: Mar 05 2025 - Mar 07 2025  

Kelicheng Power Supply Technology CO., LTD will attend The 2025 CHINA (VIETNAM) EXPORT BRAND JOINT EXPO SHOW in VIETNAM. The fair continued for four days from May 14 to 16 ( Beijing Time ). More than 500 manufacturers from all over the world in the field of IT, science and technology, information, commerce attended. Kelic will bring along many kinds of products: ac/dc adapter, industrial power supply, battery charger, etc. to the fair. Kelic will continue to deliver outstanding power supply solutions to global’s customers. Let’s await it with great anticipation. CHINA (VIETNAM) EXPORT BRAND JOINT EXPO Booth No.: A2F212 Dates: May 14th-16th, 2025 Address: Saigon Exhibition and Convention Center (SECC), Hochiminh City, Vietnam Click here for details: http://d18.red/v3c3    

A capacitor is an electronic component that stores electrical charge and releases it when needed. It consists of two conductive plates separated by an insulating material called the dielectric. When the two plates of a capacitor are connected to the positive and negative poles of a power source, charges will accumulate on the plates, forming an electric field, thereby storing electrical energy, just like a container that can store charges. The size of the capacitor depends on the area of the plates, the distance between the plates, and the properties of the insulating medium. Capacitors are common components in switching power supplies. They can be used to reduce ripple noise and improve the stability and transient response of power supplies. However, there are many types of capacitors. How can we quickly select capacitors with high reliability and stable performance?   Knowledge of capacitor types A general understanding of capacitor types will help you quickly screen the capacitor types when selecting capacitors. There are many types of capacitors. According to the package, there are chip capacitors and plug-in capacitors. According to the dielectric, there are ceramic capacitors, electrolytic capacitors, mica capacitors, etc. According to the structural form, there are fixed capacitors, semi-fixed capacitors, and variable capacitors. In switching power supplies, we use ceramic capacitors