Delivering reliable and cost-effective power conversion products is our business.

TRUMPower provides high-quality, low-cost AC/DC switching power supplies, DC/DC converters, and LED Drivers for the medical equipment, instrumentation, process control, computer and peripheral, telecommunication, and lighting industries.

Headquartered in California, we employ design centers and ISO 9001 & ISO 13485 certified manufacturing facilities in Taiwan and China. Through low-cost offshore manufacturing and effective management, we can always keep our prices competitive, while maintaining the quality of our products at a very high level and our excellent service. And as a result, we have won a sustantial number of satisfied customers since 1991 and continue to do so. High volume and low volume OEMs enjoy working with us alike.

In addition to the standard commercial and medical power supplies listed on this web site, we have some new products in development and are capable of designing and manufacturing custom power supplies to meet your specific requirements.

We are a customer-focused and project-oriented group of people.
Your business is our business.
We care about your success and profits as you do.

Should your needs be low volume standard power supplies or high volume custom products, please contact TRUMPower and give us the opportunity to be your ever-trustable source of power supplies.

You are always welcome to call or email us for any questions or comments!

Tumbler Technologies + TRUMPower
3350 Scott Blvd., Building 13, Santa Clara, California 95054, USA
Phone: 408-988-6616 • Fax: 408-988-6622 • email:

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© Tumbler Technologies + TRUMPower 2017