Aluminum PCBs consist of a metal base, typically aluminum, combined with an insulation layer and a copper layer. This construction provides excellent heat dissipation, making them ideal for applications where high heat generation is a concern, such as in LED lighting systems and power electronics. The aluminum base contributes to reducing the operating temperature and extending the lifespan of electronic components. They are also used in automotive, telecommunications, and industrial electronics due to their high thermal performance while maintaining stability.