UL rating
editExactly where in Wikipedia are the actual UL ratings listed?
I have seen numerous articles that refer to "UL ratings," yet what are these mysterious ratings and what are their meanings. This page should probably be an article instead of just a redirect.
For example this is a quote from product literature, "...UL rating of K-4, K-13 and K-20."
How can someone find the meaning of that in Wikipedia when they might not even have a clue what a UL rating might even be?