1. Both UL and ETL mean that the product has passed the test of the National Recognized Testing Laboratory (NRTL) and meets the corresponding safety standards.

2. ETL certification and UL certification have the same North American market access effect, but the cost of ETL certification is much lower than that of UL certification, generally only half of that of UL certification. Moreover, the product testing of ETL certification can be transferred through CB test reports, which can save you a lot of testing costs.

3. The time for ETL certification is also much shorter than that of UL certification. In special cases, ETL can issue the certificate first and then conduct factory inspection to save precious time for the export of your products.

4. UL is the most authoritative certification in the United States. On the one hand, UL is an American company, and ITS is a British company.