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Dimmers Testing and Certification Services

Offering testing and certification to cover many dimmers and other lighting control devices for a variety of applications, electrical ratings and industries.

A dimmer switch

We drive global research and standards to continually advance and meet ever-evolving product safety, performance and interoperability needs for dimmers and lighting control devices. Our global network of technical experts and state-of-the-art facilities can help you gain the compliance credentials you need to compete in a more complex global supply chain. Additionally, you may benefit from our long-standing relationships with regulatory authorities, partner laboratories and industry technical leaders. Our experienced staff will work with you in each step of the process to help bring your devices to market faster.

Manufacturers with in-house testing capabilities may qualify to perform testing at their facilities under UL’s Data Acceptance Program (DAP). Such testing can help reduce certification process costs and time.


Dimmers and lighting control devices are used to lower light intensity in various load applications including lighting in home (residential), office (commercial), factory (industrial) and theatrical (theater and stage) applications.


We can help ensure that your dimmers facilitate the safe control of lighting. We offer certifications and standards to cover a wide variety of solid state and relay operated dimmers and other lighting control devices. 

Certification offerings include:
  • Wall box mounted
  • Rack mounted and portable devices
  • Controllable load types:  incandescent, halogen, magnetic transformer, magnetic ballast, electronic ballast, compact fluorescent lamps and LED lamps

In addition to certifying to the U.S. and Canada requirements, we can also offer informative reports or CB Scheme Test Reports to various International Electrotechnical Commission (IEC) standards.

Areas of expertise

We provide testing and certification services for dimmers, including the following product categories:

  • General use dimmers
  • Theater dimmers
  • Theater control dimmers
  • Dimmer controllers
  • Fan speed controllers
  • Fan speed controllers and dimmers

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