ETL

Any electrical, mechanical or electromechanical product bearing the ETL inspection mark indicates that it has been tested and complies with relevant industry standards. 

Each industry has different testing standards, so be sure to consult a professional for specific product requirements. ETL inspection marks are widely used in cable products, 

indicating that they have passed relevant tests.

ETL refers to ETL Testing Laboratories Inc. ETL's listed products are recognized by "Authorities Having Jurisdiction" and can be considered "approved".