“UL Listed” - What does it mean and why is it important?

The Importance of Owning a U.L. Approved Sign:

To obtain and hold our Underwriters Laboratory certification we have to be in complete compliance with all U.L. and N.E.C. (National Electrical Code) regulations. We use only U.L. listed parts in their intended and designed purpose. We are also subject to inspections periodically to make sure we are following the direction given to us by U.L. and they also update us automatically and immediately upon any change in code. When labeled U.L. this product will perform up to specification safely.

Sign Builders of America U.L. record.