Cosel is dedicated to powering your success with high-quality power supplies, rigorously tested to meet stringent Japanese standards. Here's how we ensure your satisfaction:

Exceptional Reliability with Innovative Evaluation

We collaborate closely with component manufacturers to design and produce power supplies that last longer. Our unique testing methods, including the “Oil Bath Test,” ensure only the best industrial-grade components are used.

Confidence in Quality with Long-term Warranties

Our products, certified with ISO9001/14001, are known for their long lifespan, high efficiency, and eco-friendliness. We stand by our quality with warranties ranging from 5 to 10 years.

Proactive On-site Technical Support

Our expert engineers are available to visit your site, addressing and resolving any technical issues promptly, ensuring minimal downtime.

Reliable Problem Resolution

If an issue arises, we conduct thorough analyses to identify the root cause and provide effective solutions, ensuring your operations continue hatha.