A 3D illuminated sign is a type of signage that uses three-dimensional design elements and lighting to create a striking visual effect. These signs are customizable and can be used both indoors and outdoors to advertise a business, highlight a brand or product, or simply draw attention to a specific area. They are achieved by using various materials and techniques to create a multi-layered effect, and lighting elements such as LED lights or neon tubing are used to illuminate the design. Overall, a 3D illuminated sign is a powerful marketing tool that can help businesses stand out and attract more customers.