This CAT LED neon sign is a decorative light display the CAT in bright, glowing neon. Neon signs are made by bending glass tubes into specific shapes and then filling them with a gas, typically neon or argon. When an electrical current is applied to the gas, it produces a bright light that is visible even in daylight. LED neon signs are a more recent development that use LED lights instead of neon gas to create the glowing effect. LED neon signs are more energy efficient and longer lasting than traditional neon signs. They can be used to add a decorative touch to a room or to promote a business or event.