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Since 1985, CHINFA has been developing, manufacturing and selling high quality switching power supplies.
ISO 9001 certified by TUV rheinland since 1997 to assure quality management. our technological competence is our expertise and leads to a steady stream of innovative products. Continuous innovation is necessary for successful product development. Partnership is essential.
We have become one of the leading partners in the field of power supplies worldwide.

Founded in 1982, MEAN WELL is one of the world's few manufacturers dedicated to standard power supply products. It is ranked the 4th in global power supply (DC output) makers according to a report by Micro Technology released in March, 2021. 99% of MEAN WELL sales are of standard power supply products sold under the MEAN WELL brand name. The other three companies' products are ODM/OEM.
MEAN WELL has been working as a "reliable partner" with customers, suppliers, contractors, and employees to build long lasting mutual trust relationships based on the spirit of "good intentions."
Thanks to robust partnerships with 245 plus authorized distributors around the world, MEAN WELL has been growing and getting stronger for three decades. With 2,800 employees located at its global headquarters in New Taipei Industrial Park, Taiwan, branches and sales offices at Guangzhou, Shenzhen, Suzhou in China, California USA, and Netherlands in the EU, four production bases in New Taipei City (Taiwan), Huadu District in Guangzhou, Suzhou City in China, and Bangalore in India, MEAN WELL had a combined revenue of USD 1,351 million in 2021.

For more than 30 years, the RSG® brand stands for custom-designed switch-mode power supplies and standard DC/DC converters with an exceptional value-for-money, addressing all requirements for reliable high-quality power supply solutions.
RSG Electronic Components GmbH was initially founded in Offenbach/Main in 1988 as a special distributor for passive electronic components.Soon, the product portfolio was extended by AC/DC and DC/DC power supplies and inverters, and only few years later an own R&D for custom-designed power supply solutions up to approx. 25kW was established.
In December 2013 RSG Electronic Components GmbH became part of the British discoverIE Group (LSE: DSCV) and functions within the group as the international center of excellence for the development and production of power supplies.
Eventually, in August 2020 RSG Electronic Components GmbH was legally merged with its sister company Acal BFi Germany GmbH at their facility in Dietzenbach. From there we serve our customers in all parts of the world.
Our foundation for a successful partnership with you are high-quality products combined with the know-how to find the perfect solution for your specific requirements.
The custom-designed switch-mode power supplies developed by us and our comprehensive R-Series® DC/DC converter portfolio with its outstanding price/performance ratio are the cornerstones of the RSG® brand.
Acal BFi Germany GmbH is certified according to ISO 9001: 2015 and AEO.

MBS- We make energy measurable
The name of MBS is symbolic for innovation and know-how "Made in Germany".
MBS is global player in the field of energy management, automation or metering.
MBS products contribute for the correct collection of amperages.
MBS has many national and international approvals and certifications:

• ISO 9001:2015 Certificate
• PTB (Physikalisch-Technische Bundesanstalt) Approval
• IPH (Institut „Prüffeld für elektrische Hochleistungstechnik“) Approval
• GL (Germanischer Lloyd) Certificate (For marine application)
• UL (Series CTB)
• GOST Certificate
• Engergy Management ISO 50001:2011 Certificate
• International Approvals - Switzerland, Austria, Russia, Hungary, the Czech Republic, Bulgaria, Romania, Slovakia, Croatia, etc.