At present, there are two ways to obtain the ETL certificate, one is to transfer through the CB test report, and the other is to apply directly. The required submissions are as follows: 1. Application form 2. Copy of CB test certificate (not required for direct application) 3. Copy of CB test report (not required for direct application) 4. Samples (4-8) 5. Other related test results and product data, such as product descriptions, photos, component lists, product performance and specifications, circuit schematics, etc. (If you pass the CB report, you need to perform a difference test)