The LED electronic display is used indoors, that is, the voltage used in a natural environment that will not be directly affected by wind, rain, sun and other climatic conditions is 220V, and it needs to be connected to a computer when working. This product belongs to indoor display equipment, and belongs to the \"Product Catalog for Batch Implementation of Compulsory Product Certification\". The display equipment used in conjunction with computers in the information technology equipment must pass the 3C certification before it can be shipped, sold, imported or used in other business activities. For the products listed in the catalog, since May 1, 2003, products that have not obtained the compulsory product certification certificate and have not applied the Chinese compulsory certification mark shall not be shipped, imported or sold.

As the daily necessities that are in close contact with humans-textile products and clothing, due to the characteristics of relatively large correlation with various chemicals, such as dyes, auxiliaries, finishing agents, and related auxiliary materials and accessories, in the material selection and manufacturing process , And in the production process of raw and auxiliary materials, the use of certain chemical source substances and intermediate substances will have a negative impact on the environment and operators. Therefore, we should not take the problem lightly. In addition, the export of textiles and clothing to the EU requires REACH certification.

On December 3, 2001, the General Administration of Quality Supervision, Inspection and Quarantine and CNCA issued Announcement No. 33 of 2001 \"The First Batch of Products Subject to Compulsory Product Certification\" (hereinafter referred to as the catalog). The catalog has 19 categories and 132 products. The eighth category \"audio and video equipment\" 0801 sub-category is \"single-speaker and multi-speaker active speakers with a total output power of 500W (effective value) or less\" (ie audio), which means that audio is a CCC certified product catalog Products within the scope must be certified by CCC. According to the \"Management Regulations on Compulsory Certification\", as of May 1, 2003, products that have not obtained the compulsory product certification certificate and the Chinese compulsory certification mark shall not be shipped, imported or sold for the products listed in the catalog. .

The IECEE CB system is the first truly international system for mutual recognition of electrical product safety test reports. The national certification bodies (NCB) of various countries have formed a multilateral agreement, and manufacturers can obtain the national certification of other member states of the CB system with a CB test certificate issued by NCB.

SDoC, namely Supplier\'s Declaration of Conformity, the equipment supplier (note: the supplier must be a local company in the United States) will test the equipment that meets the specified standards or requirements, and the equipment that meets the requirements must provide relevant documents (such as SDoC declaration documents) ) Provide proof to the public.

In order to standardize the management of inspection agencies for type approval of radio transmission equipment (hereinafter referred to as type approval), and to further improve the quality and level of type approval testing, on September 14, 2020, the Radio Administration of the Ministry of Industry and Information Technology and the National Conformity Assessment of China recognized The Center (CNAS) jointly organized a kick-off meeting for the supervision and inspection of the radio transmission equipment type approval inspection agency in Beijing, and officially launched the 2020 supervision and inspection of the radio transmission equipment type approval inspection agency.

The IEC 60335-1: 2020 \"Safety of Household and Similar Electrical Appliances Part 1: General Requirements\" formulated by IEC/TC61 International Electrotechnical Commission 61st Technical Committee for Household Appliances was officially released on September 2, 2020.

The mini computer is compact in size, more convenient to carry, saves space when going out, and is more convenient to use. Imagine putting all the functions of a traditional desktop computer into a chic box, and its size is only the size of a book. You can install a fully open Windows operating system, various software, games, and customize it based on your personal preferences. However, the export of mini-computers to EU countries needs to apply for CE certification. RED is within the scope of CE certification. It is aimed at wireless products. Mini-computers with wireless functions require CE-RED directives and CE-EMC directives.