The lighting on this website has a variety of ratings. The ratings vary based on the country they are rated for and the environment of use. Some products are rated to standards outside of the USA. Those standards are equal to, or surpass the testing of electrical fixtures in the USA.
Here is a key to determine what the ratings mean for your fixtures:
UL – Underwriters Laboratories Inc.
ETL – Edison (Electrical) Testing Laboratories (Intertek)
C-ETL – Edison Testing Laboratories (conforms to Canadian standards)
CSA – Canadian Standards Association (conforms to UL standards)
These independent labs test for other strict electrical standards too, so it is important to have a UL or ETL listing as a mark of general safety and quality.