ETL is an American electronic testing laboratory，Founded by Thomas Edison in 1896, it is an NRTL (Nationally Recognized Laboratory) recognized by the US OSHA (Federal Occupational Safety and Health Administration). After more than 100 years, the ETL logo has been widely recognized and accepted by major retailers in North America, and enjoys a high reputation as UL. ETL inspection mark Any electrical, mechanical or electromechanical product as long as it bears the ETL inspection mark indicates that it is tested to meet relevant industry standards.