Neon signs play an important role for your business. A quality power source is critical to preserving the life of your neon sign. All neon signs must have a neon sign transformer. Neon sign transformers convert main voltage into usable power for your neon sign. A neon sign transformer is a critical element to maintaining your neon sign. All neon transformers meet UL2161 requirements. These neon transformers are designed to safely fit and power most neon signs.