That is the "UL Recognized Parts Mark" in the UL mark
The UL mark is a safety certification mark recognized in the United States and North America. Products with this mark are equivalent to It has obtained a safety and quality credit card, and its credibility has been accepted by consumers. Therefore, the UL mark has become a special passport for related products (especially electromechanical products) to enter the US and North American markets.
UL marks are divided into three categories, namely listing, classification and recognition marks. The main component of these marks is the UL pattern, and they are all registered trademarks. They are not universally applicable to different service products.
For details, please refer to the following address:
/tixi/2137.html
/ul.htm