Spike Electric Controls is a UL NRTL manufacturer. Our certification number is E472774. As a member, we are approved apply UL symbols and other markings including listing, classification, product, & control numbers to our products. We work closely with UL to ensure that the necessary markings meet with their approval. Also, as part of that process, we will add your particular product information such as company name, electrical ratings, warning notices, date codes, etc. to your custom engraved labels. We specialize in electrical name plates & custom engraved legend plates for your application. A proof is always provided to you for final approval.