All electrical products must pass Underwriters Laboratories test and get the certification and UL mark on the products to enter US market.

"UL approved"; is not a valid term used to refer to a UL Listed, UL Recognized or UL Classified product under any circumstance. There are a number of requirements and guidelines that should be followed to accurately communicate a product's UL certification.

UL is concerned with the safety aspect of all potentially hazardous products. UL's testing and certification services involve a wide variety of product categories, including marine products and life saving devices, fire suppression, fire containment, fire growth and control equipment as well as analysis of chemical vapors and industrial, mechanical and automotive equipment. UL test for casualty hazards as well as products to protect against theft or fire and the proper installation of this equipment. Heating, air conditioning and refrigeration products are also tested.

You can get more UL Testing and Certification Services information at: www.ul.com