What do the letters "UL" represent on an electrical product?

The letters "UL" stand for Underwriters Laboratories, which is a global safety certification company that develops standards and tests products to ensure they meet specific safety requirements. When you see the UL mark on an electrical product, it signifies that the product has been rigorously tested for safety and compliance with established industry standards. This certification indicates to consumers that the product is reliable and reduces the risk of electrical hazards, such as fires or shocks.

Underwriters Laboratories has a long history and a strong reputation for quality and safety assurance and is recognized internationally. The UL mark is widely trusted in the electrical and general consumer goods market, providing peace of mind to users about the safety of the products they use in their homes and workplaces.