Product Description: The single-layer aluminum Printed Circuit Board (PCB) you've specified is an Aluminum-backed Metal Core PCB (MCPCB), perfectly suited for high-brightness LED projects. It can be provided superior thermal management compared to traditional FR-4 PCBs, which is critical for the lifespan and performance of LEDs. The LED PCB board is produced with aluminum substrate, there is excellent heat dissipation. It rapidly draws heat away from the LED components. 1OZ