hardwareguy,
You can do some checking of the UL information
here.You type in the UL category code (everything before the "." on the powermax page that you linked to) This will give you a list of every manufacturer that has a UL listing under that product code. Note that "QQFU2" is the only valid category code listed on that page and Leadman Electronic Company does not have a valid listing in that category. You could send a note to UL with that page link and ask them to check on it.
Don
