All Merry King power adapters (Acousto, Transformers) are in compliance with the safety requirements of relevant countries. The current safety certification certificates are:

North America: Comply with the UL1950 information product specification required by the US and Canadian governments, certificate number: E159249; E361658; home appliance product specification UL1310, certificate number: E149533.

European GS, CE: Information security standard EN60950-1/A12:2011 recognized by the entire European Community, issued by German TUV, certificate number: 22489.

Japan PSE: Complies with Item 1 of the Japan Electrical Product Safety Law, JET6064-61010-1001 issued by JET; JP-0821/0822 certificate issued by TUV in accordance with J60950 & J55022.

Australia SAA: in line with AS/NZS60950.1:2011 & AS/NZS 3112:2011; certificate number: GMA-102119-EA-001

Based on the IECEE "World System of Electrical Products Qualification Testing and Certification" international agreement, the CB certificate is recognized by 53 industrialized countries including the European Union. The certification standard is: IEC60950-1; and a complete test report can be provided.

Other certifications obtained include K-MARK certification in South Korea; CCC certification in China GB4943; and POCC RU certification in Russia.

For related information, please feel free to call 0755-27089988 or email to confirm: angie@merrykingtech.com.

The energy efficiency of Merry King's products has been updated to the sixth level, which fully meets the Level VI requirements of California, the relevant certificates include CEC of California; DOE VI of the US Energy Commission; MEPS of Australia; ERP of the European Union.

For related information, please feel free to call 0755-27089988 or email to confirm: angie@merrykingtech.com.

Since April 1, 2001, the "Electrical Product Control Law (DENTORL)" has been officially renamed the "Electrical Product Safety Law (DENAN)". This regulation is different from the control of the agreement provisions of the previous regulatory system. In the new system, unofficial institutions will ensure product safety. The regulations require Japanese purchasers to register and declare with the Ministry of Economy, Trade and Industry (METI) within one month after purchasing the goods. All electrical and electronic products in the DENAN catalog sold in the Japanese market must pass PSE certification. DENAN of Japan divides electrical and electronic products into two categories: specified products, including 115 products; non-specified products, including 338 products. Specific electrical products must be inspected by a third-party certification body authorized by the Ministry of Economy, Trade and Industry of Japan for product and factory testing equipment, and PSE certification is issued. The certification is valid for 3 to 7 years, and the PSE diamond mark is affixed to the product. Non-specific electrical products need to prove the conformity of the product by means of self-inspection and declaration, and a PSE round mark is affixed to the product. Therefore, it is necessary to purchase an original copy of the certificate while obtaining the certificate to apply. If you have any questions, please call or email for consultation: For relevant information, please feel free to call 0755-27089988 or email to confirm: angie@merrykingtech.com.

According to the safety requirements of relevant countries, there will be corresponding standard requirements for power adapters, adapters, transformers and other products according to different uses. Generally, the most commonly used information types are IEC60950, EN60950, UL1950;

Home appliances IEC61558, EN61558, UL1310;

IEC60065, EN60065, UL60065 used in audio and video;

The standard of LED lamps is IEC/EN60598, 600968, 60825, UL1598;

Medical power supply; special standards for waterproof power supply IP20, IP40, etc.

If guests have special requirements, they will be put forward on the relevant information. Otherwise, just follow the standard obtained by the manufacturer. As long as there are relevant national certifications, the products can be sold in relevant countries and regions. These Merry Kings can help you.

For related information, please feel free to call 0755-27089988 or email to confirm: angie@merrykingtech.com.

1. Merry King strictly implements the relevant provisions of the national three-guarantee law and factory warranty regulations, so Meiliqing provides three-guarantee services for products manufactured and sold.

2. OEM/ODM products are calculated from the date of delivery, and within the scope of the effective warranty, a three-month replacement is provided. one year warranty.

2. OEM/ODM products are calculated from the date of delivery, and within the scope of the effective warranty, a three-month replacement is provided. one year warranty.

4. For the after-sales process, please refer to the process description at the bottom of this page.

Under normal conditions of use, non-human factors, non-natural disasters, non-force majeure, electrical defects or other quality problems, failures, a one-year free warranty will be implemented, and if the warranty exceeds one year, the warranty will be implemented in accordance with the non-guarantee standard;

1. Unable to provide valid certificates such as purchase certificate, serial number, etc., and unable to determine the purchase and production date;

2. During the product replacement period, the appearance of the product is worn, dirty, scratched, or accessories are incomplete;

2. During the product replacement period, the appearance of the product is worn, dirty, scratched, or accessories are incomplete;

1. Please prepare the corresponding information first, such as: product model, transaction order number, purchase date and other information;

2. Click here to submit the after-sales application. After the submission is successful, you will receive an automatic reply email from Merry King Technology;

3. After receiving the application, the after-sales service department of Merry King Technology will start processing the order. The staff communicates with the applicant about the return of defective products;

4. Customers return defective products, small items are sent by express, and large items are sent by logistics;

5. After receiving the defective product, the after-sales service department of Merry King Technology will send it to the engineering department for failure cause analysis, complete the repair work, and return it to the after-sales service department;

6. Merry King Technology will return good products to customers;