Cosel is one of the leading power supply manufacturers with a history of 50 years. Cosel manufactures high-quality AC-DC power supplies, DC-DC converters, power modules and EMI filters.

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Cosel is one of the leading power supply manufacturers with a history of 50 years. Cosel manufactures high-quality AC-DC power supplies, DC-DC converters, power modules and EMI filters.

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Cosel has number one market share in Japan where the testing standard is stringent and has proven to be a trusted power supply manufacturer with the following attributes:

Confidence in Our High Quality Product(5-10 Years Warranty)
Manufacturer of long lifetime, high efficiency, and environment-friendly power supplies with ISO9001/14001 certification.
On-site Techincal Support
Our engineers visit the site to solve your technical issues.
Trustworthy Analytical Ability
If our product has any problem, we will analyze the defective product to determine the root cause of the problem and provide countermeasures to resolve it.
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